cx28380 Mindspeed Technologies, cx28380 Datasheet

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cx28380

Manufacturer Part Number
cx28380
Description
Cn8380 Quad T1/e1 Line Interface
Manufacturer
Mindspeed Technologies
Datasheet

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Part Number:
cx28380-16
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CX28380
Quad T1/E1 Line Interface
The CX28380 is a fully integrated quad line interface unit for both 1.544
Mbps (T1) and 2.048 Mbps (E1) applications. It is designed to complement
T1/E1 framers or operate as a stand-alone line interface to synchronous or
plesiochronous mappers and multiplexers. The device can be controlled by a
serial port in host mode or by hardware mode operation in which device
control and status are obtained through non-multiplexed dedicated pins.
Many of these pins are also dedicated to individual channels for maximum
flexibility and for use in redundant systems. Integrated in the CX28380
device is a clock rate adapter (CLAD) that provides various low-jitter
programmable system clock outputs. The receive section of the CX28380 is
designed to recover encoded signals from lines having more than 12 dB of
attenuation. The transmit section consists of a programmable, precision
pulse shaper.
Functional Block Diagram
29380-DSH-001-B
8380_001
RTIP[1]
RRING[1]
XTIP[1]
XRING[1]
Test Port
Signals
JTAG
JTAG
Test
5
Re-
ceiver
Driver
Alarm Signals
Control and
Recovery
Shaping
Clock
Data
and
Pulse
Control
47
Serial
Host
Port
Detect
RLOS
4
TAIS
Reference
10 MHz
Fixed
Mindspeed Proprietary and Confidential
Mindspeed Technologies
Reference
Variable
Attenuator
Jitter
1.544
MHz
Clock Rate Adapter
2.048
MHz
Decode
Encode
ZCS
ZCS
32.768
MHz
RPOSO[1]
RNEGO[1]
RCKO[1]
TPOSI[1]
TNEGI[1]
TCLK[1]
8 kHz–32 MHz
Selectable
LIU #1
LIU #2
LIU #3
®
LIU #4
Distinguishing Features
• Four T1/E1 short-haul line interfaces in a
• On-chip CLAD/system synchronizer
• Digital (crystal-less) jitter attenuators
• Meets AT&T publication 62411 jitter specs
• Meets ITU-T G.703, ETSI 300 011
• AMI/B8ZS/HDB3 line codes
• Host serial port or hardware-only control
• On-chip receive clock recovery
• Common transformers for 120/75
• Low-power 3.3 V power supply
• Transmitter performance monitor
• Compatible with latest ANSI, ITU-T, and
• 128-pin MQFP package
• Remote and local loopbacks
• Available in Green (ROHS compliant) as
Applications
• SONET/SDH multiplexers
• T3 and E3/E4 (PDH) multiplexers
• ATM multiplexers
• Voice compression and voice processing
• WAN routers and bridges
• Digital loop carrier terminals (DLC)
• HDSL terminal units
• Remote concentrators
• Central office equipment
• PBXs and rural switches
• PCM/voice channel banks
• Digital access and cross-connect systems
single chip
selectable for transmitter/receiver on each
line interface
(PSTNX) connection specifications
modes
and 100
ETSI standards
well as standard version
equipment
(DACS)
T1
August 2006
E1

Related parts for cx28380

cx28380 Summary of contents

Page 1

... CX28380 Quad T1/E1 Line Interface The CX28380 is a fully integrated quad line interface unit for both 1.544 Mbps (T1) and 2.048 Mbps (E1) applications designed to complement T1/E1 framers or operate as a stand-alone line interface to synchronous or plesiochronous mappers and multiplexers. The device can be controlled by a serial port in host mode or by hardware mode operation in which device control and status are obtained through non-multiplexed dedicated pins ...

Page 2

... Ordering Information Model Number CX28380-16 CX28380G-16* Evaluation Module *The G in the part number indicates that this is an RoHS compliant package. Refer to www.mindspeed.com for additional information. Revision History Revision Level B Final A Preliminary 29380-DSH-001-B Package 128-pin MQFP 128-pin MQFP BT00–D660–001 Date ...

Page 3

... Line rate – References as low as 8 kHz ® Mindspeed Technologies Mindspeed Proprietary and Confidential CX28380 Quad T1/E1 LIU Host Serial Interface • Compatible with existing framers • Compatible with microprocessor serial ports • Bit rates Mbps In-Service Performance Monitoring • ...

Page 4

... Bipolar Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 2.3.6.2 Unipolar Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 2.4 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 2.4.1 Transmit Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 2.4.1.1 Bipolar Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 2.4.1.2 Unipolar Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 2.4.2 TZCS Encoder .21 2.4.3 Transmit Jitter Attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 2.4.4 All 1s AIS Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 2.4.5 Pulse Shaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 2.4.6 Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 2.4.6.1 Transmit Termination Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 2.4.6.2 Output Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 2.4.7 Transmitter Output Monitoring .27 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies iv ...

Page 5

... Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 2.8.2 Device Identification Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 3.1 Address Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 3.2 Global Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 3.3 Per Channel Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 3.4 Transmitter Shape Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 4.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 4.2 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 4.3 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 4.4 Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 4.5 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 4.6 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies Contents v ...

Page 6

... CX28380 Logic Diagram (Host Mode 1-3 Figure 1-3. CX28380 Logic Diagram (Hardware Mode 1-4 Figure 2-1. Detailed Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 Figure 2-2 ...

Page 7

... Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53 Table 4-2. Peak Reflow Temperature for Green (RoHS) Compliant Version of the CX28380 G device . . . . . . . . . . . . . . . . 4-54 Table 4-3. Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54 Table 4-4 ...

Page 8

... Table A-1. Applicable Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-68 Table B-1. Transformer Specifications B-70 Table B-2. REFCKI (10 MHz) Crystal Oscillator Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-70 Table C-1. CX28380-16 Typical Register Settings for C-73 Table C-2. CX28380-16 Typical Register settings for E1-120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-74 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies Tables viii ...

Page 9

... Pin Descriptions The CX28380 is packaged in a 128-pin metric quad flat pack (MQFP). A pinout diagram is illustrated in Figure 1-1. Logic diagrams are illustrated in output functions, and descriptions are provided in The following input pins contain an internal pull-up resistor (> 50 kΩ) and may remain unconnected if unused or if the active high input state is desired: ...

Page 10

... Figure 1-1. CX28380 Pinout Diagram CLADI 1 VAACL 2 GNDCL 3 REFCKI 4 VSS 5 VDD 6 CLK32 7 CLK1544 8 CLK2048 9 CLADO 10 VSS 11 VDD 12 RNEGO/BPV [4] 13 RPOSO/RDATO [4] 14 RCKO [4] 15 TNEGI [4] 16 TPOSI/TDATI [4] 17 TCLK [4] 18 RNEGO/BPV [3] 19 RPOSO/RDATO [3] 20 RCKO [3] 21 TNEGI [3] 22 TPOSI/TDATI [3] 23 TCLK [3] 24 VSS ...

Page 11

... Figure 1-2. CX28380 Logic Diagram (Host Mode) Hardware/Host Mode Hardware/Host Mode Hardware Reset I Hardware Reset Local Loopback I Local Loopback Remote Loopback I Remote Loopback Serial Data In I Serial Data In Serial Clock In I Serial Clock In Serial Chip Select I Serial Chip Select Receive Tip I Receive Tip ...

Page 12

... Figure 1-3. CX28380 Logic Diagram (Hardware Mode) VDD Hardware/Host Mode Hardware Reset I Jitter Attenuator Path I Jitter Attenuator Size I Unipolar/Bipolar I Transmitter Termination I Transmit Pulse Template I Clock Polarity I Raw Mode Select I Local Loopback I Remote Loopback I Zero Code Suppression I Receive Tip I Receive Ring I Transmit Clock ...

Page 13

... Transmitter (continued Hardware Mode, a low signal causes AIS (unframed all 1s) transmission on I XTIP/XRING outputs. In Host Mode, these pins can be enabled or disabled [LIU_CTL; addr n3]. If disabled, they are not used and may be left unconnected. ® Mindspeed Technologies Pin Descriptions Definition 5 ...

Page 14

... See the Host Serial Control Signals section of this table. JSEL( JDIR / SCLK P Low selects receiver Raw mode. Applicable only in Hardware Mode. In Raw mode, I RPOSO and RNEGO represent the data slicer outputs, and RCKO is the logical OR of RPOSO and RNEGO. ® Mindspeed Technologies Pin Descriptions Definition JSEL(2) / SDI JATERR(1) / SDO 6 ...

Page 15

... JAT (if enabled) is placed in the transmit path. See the description for JSEL(2:0). SCLK/JDIR is a dual function pin high on JATERR indicates an overflow or underflow error in the jitter attenuator elastic store. JATERR(1) / SDO is a dual function pin. ® Mindspeed Technologies Pin Descriptions Definition Table 2-3. Tables 2-4 ...

Page 16

... V ± 5%. Power supply pairs for the transmitter driver circuitry. These pin pairs should each be bypassed with a tantalum capacitor value of at least 10 I +3.3 V ± 5%. Power supply pair for the analog receiver circuitry. I +3.3 V ± 5%. Power supply pair for the CLAD PLL circuitry. ® Mindspeed Technologies Pin Descriptions Definition Table 2-1). µ F. ...

Page 17

... V. If all logic input signals are 3.3 V levels, then this pin may be connected to the 3.3 V supply. Bypass with a 10 — No-connect pins are reserved for future device compatibility and should be left unconnected. ® Mindspeed Technologies Pin Descriptions Definition µ F tantalum capacitor. 9 ...

Page 18

... Circuit Description 2.1 Overview The CX28380 includes four identical T1/E1 transceiver channels and a common CLAD packaged in a 128-pin MQFP carrier designed to interface T1/E1 framers operate as a stand-alone line interface for synchronous or plesiochronous mappers and multiplexers. The CX28380 is ideal for high line density, short-haul applications that require low power (3 ...

Page 19

... Figure 2-1. Detailed Block Diagram 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies Circuit Description 11 ...

Page 20

... SDI pin. This data is received by the CX28380 and stored in the addressed register. If the operation is a read operation (R/W = 1), the CX28380 outputs the addressed register contents on the SDO pin. The signal input on SDI is sampled on the SCLK rising edge, and data output on SDO changes on the SCLK falling edge ...

Page 21

... Reset The CX28380 supports three reset methods: power-on reset, hard reset initiated by the RESET pin, and soft reset initiated by the RESET bit in the Global Configuration Register [GCR; addr 01]. In Host Mode, all three reset methods produce the same results as listed below. In Hardware Mode, power-on reset and hard reset produce the same results as shown, and soft reset is not applicable ...

Page 22

... Power-on Reset An internal power-on reset process is initiated during power-up. When VDD has reached approximately 2.6 V, the internal reset process begins and continues for 300 ms maximum if REFCLK is applied. If REFCLK is not present, the CX28380 remains in the reset state. 2.2.4.2 Hard Reset Hard reset is initiated by bringing the RESET pin active (low). Once initiated, the internal reset process completes in 5 µ ...

Page 23

... This section discusses each receiver block from the line input to the digital outputs. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Ω line-feed resistors, a 2:1 turns ratio transformer, Ω ), and 100 protection resistors. The 100 t 100 RTIP CX28380 Rt 100 0.1 RRING ® Mindspeed Technologies Circuit Description Ω resistors are 100048_002 ...

Page 24

... RCKO is the logical NOR of the RPOSO and RNEGO. This mode is useful in applications which provide external clock and data recovery. mode receiver signals. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Data Slicer Level (50% of Peak ® Mindspeed Technologies Circuit Description BPV Figure 2-5 illustrates the raw 16 ...

Page 25

... Mindspeed Technologies Circuit Description BPV RALOS RLOS 100 Zeros 100 Zeros 100 Zeros 32 Zeros 32 Zeros 32 Zeros ...

Page 26

... JAT) is illustrated by the curve labeled with “Typical Receiver Tolerance with JAT Disabled.” The receiver meets jitter tolerance specifications TR62411, G.823, and G.824. In addition, the receiver 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Sensitivity Table 2-1. RALOS status is cleared as soon as pulses above the RALOS ® Mindspeed Technologies Circuit Description RALOS RLOS 18 ...

Page 27

... HDB3). In Hardware Mode, unipolar operation is enabled by pulling the UNIPOLAR pin low. In Host Mode, unipolar operation is enabled by writing register bit UNIPOLAR [RLIU_CR; addr n1]. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Section 2.6. Chapter 1 for details. Table 1-1. ® Mindspeed Technologies Circuit Description 19 ...

Page 28

... A high on TDATI causes an AMI pulse to be transmitted to the line. In this mode, the TZCS encoder can be enabled to provide B8ZS or HDB3 zero code suppression. In Hardware Mode, unipolar operation is 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies Circuit Description Figure 2-6 20 ...

Page 29

... TAIS_PE to 1 disables the TAIS register bit and allows manual transmission of AIS using the TAIS [n] hardware pins. See LIU_CTL [addr n3] in 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Table 1-1. Chapter 3, and Table 1-1. ® Mindspeed Technologies Circuit Description Chapter 1; for JAT transfer Section 2.5. 21 ...

Page 30

... Hardware Mode Line Length Configuration 0–133 ft. 133–266 ft. 266–399 ft. 399–533 ft. 533–655 ft. ® Mindspeed Technologies Circuit Description Transmitter Mode Transmit Transmit Data Clock X Tx Data TCLK 0 AIS TCLK X No Data TCLK 1 AIS TACKI/EACKI X Tx Data ...

Page 31

... XTIP[n] and XRING[n]. When a shorted line is detected, transmit monitor and protection circuits reduce the output current level to less than 50 mA RMS. The standard transmit transformer for the CX28380 has a turns ratio of 1:2 (chip-side:line-side). To minimize power consumption, an alternate 1:1.36 turns ratio transformer can be used in an unterminated configuration. ...

Page 32

... Resistors (Rs) in series with Tx TIP and Tx RING line connections are sometimes used with surge protection circuits. Without compensation, the addition of these resistors decreases the transmit pulse amplitude. The CX28380 provides an option in Host Mode to boost the output level if resistors are installed. Compensation is optimized for the use of 5.6 Ω Rs values. In Hardware Mode, these resistors are required. ...

Page 33

... None None None 31.6 None 51.1 None None Parallel Termination Ω (Rt, None 23.7 None 23.7 None 23.7 None 23.7 Parallel Termination Ω (Rt, Ω None 2 × 5.6 Ω 28.7 2 × 5.6 ® Mindspeed Technologies Circuit Description Return Loss (dB –10 –10 0 Return Loss (dB) ) –30 –18 –18 –30 Return Loss (dB –10 25 ...

Page 34

... Parallel Termination Ω (Rt, Ω × 5.6 Ω × 5.6 Ω × 5.6 Ω × 5.6 Parallel Termination Ω (Rt, None 68.1 None 107.0 None None ® Mindspeed Technologies Circuit Description Return Loss (dB) ) –10 0 Return Loss (dB) ) –30 –18 –18 –30 Return Loss (dB) ) –10 – ...

Page 35

... Table 2-9. Refer also to register LIU_CTL [addr n3] in Table 2-9. Loopback Control Pins LLOOP RLOOP 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Chapter 3. None Remote Line Loop Local Analog Loop Local Digital Loop ® Mindspeed Technologies Circuit Description Loopback 27 ...

Page 36

... The dejittered receiver recovered clock is output on the RCKO[n] pin if the JAT is configured in the receive path. The receiver input clock and data jitter tolerance and jitter transfer meet TR 62411-1990. illustrate jitter tolerance and JAT transfer characteristics. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies Circuit Description ± 64 bits of accumulated Figures 2-9 and ...

Page 37

... Minimum Tolerance 1 0.1 0.1 8380_013 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Typical Receiver Tolerance with JAT Disabled 128 bits 64 bits 1 100 Sine Wave Jitter Frequency (Hz) [Log Scale] ® Mindspeed Technologies Circuit Description 32 bits 16 bits 8 bits 0.4 UI 0.2 UI 0.1 UI 1000 10000 100000 29 ...

Page 38

... Atten. Boundary) -60 1 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential JAT Size = 128 10 100 1000 Sine Wave Jitter Frequency (Hz) [Log Scale] ® Mindspeed Technologies Circuit Description Rec G.735 (Min. Atten Boundary) PUB 62411 (Min. Atten. Boundary 10000 100000 ...

Page 39

... Preliminary Information / Mindspeed Proprietary and Confidential Clock Rate Adapter (CLAD) [G_T1/E1] CLAD Control/ [CPD_IE] Loop NCO Phase Filter Detector [FREE] [LFGAIN] Divider Chain 13 ® Mindspeed Technologies Circuit Description [CPDERR] Status [CPD_INT] 10 MHz REFCKI 32.768 MHz CLK32 2.048 MHz CLK2048 1.544 MHz CLK1544 CLADO 14 ...

Page 40

... Mindspeed Technologies Circuit Description Table 2-10 lists the CLADV VSEL (kHz) 1024 0001 1024 0001 1024 0001 1024 0001 1024 0001 1024 0001 1024 ...

Page 41

... Table 2-11. Table 2-11. ® Mindspeed Technologies Circuit Description CLADV VSEL (kHz) 1544 0111 1544 0111 1544 0111 1544 0111 1544 0111 3088 1000 6176 1001 12,352 1010 24,704 ...

Page 42

... High values allow the CLAD to react more quickly (by raising the 3 dB point of its jitter transfer curve) while low values cause the CLAD to react more slowly. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Table 2-11 Phase Compare Frequency VSCALE (kHz) 1024 011 ® Mindspeed Technologies Circuit Description are applicable. For instance, an Table 2-12. CLADV VSEL (kHz) 8192 0100 34 ...

Page 43

... Figure 2-1. Jitter Transfer 3 dB Point Versus LFGAIN and RSCALE/VSCALE for T1 -10.00 -30.00 -50.00 -70.00 -90.00 -110.00 -130.00 1 -10.00 -30.00 -50.00 -70.00 -90.00 -110.00 -130.00 1 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential T1_3dB, RSCALE=1,VSCALE=1 1000 Frequency (Hz) T1_3dB, LFGAIN=1 1000 Frequency(Hz) ® Mindspeed Technologies Circuit Description LFGAIN=1 LFGAIN=8 LFGAIN=512 RVSCALE=1 RVSCALE=4 RVSCALE=128 35 ...

Page 44

... RVSCALE means RSCALE and VSCALE. For example, RVSCALE = 128 means that RSCALE = 128 and VSCALE = 128. 2.8 Test Access Port (JTAG) The CX28380 incorporates printed circuit board testability circuits in compliance with IEEE Std. P1149.1a–1993, IEEE Standard Test Access Port and Boundary–Scan Architecture, commonly known as JTAG (Joint Test Action Group). ...

Page 45

... Preliminary Information / Mindspeed Proprietary and Confidential Table 2-13 lists the JTAG instructions and their codes. Table 2-14. Part Number 0x8380 16 Bits ® Mindspeed Technologies Circuit Description Code 1111 0001 0000 0010 Manufacturer 0x013 ...

Page 46

... Line Interface Unit Control — — R Alarm Status R Interrupt Status Register R/W Interrupt Enable Register R/W Transmit Pulse Shape Configuration R/W Transmit Pulse Shape Configuration R/W Transmit Pulse Shape Configuration R/W Transmit Pulse Shape Configuration ® Mindspeed Technologies (1) Default Setting (Hex — — — ...

Page 47

... Global Control and Status Registers 00—Device Identification (DID DID[7] DID[6] DID[5] Device value of 0x0 is assigned. DID[7:4] Device Revision- A value of 0x6 is assigned for CX28380-16 DID[3:0] 01—Global Configuration (GCR RESET G_T1/E1N CLK_OE 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential R/W ...

Page 48

... Determines output state of CLK1544, CLK2048, and CLADO clock — Enables CLAD loss of lock detector, CPD_INT — Determines whether TCLK[1:4] pins are inputs or outputs. — Selects the CLAD reference clock source input to the CLAD phase — RSCALE[0] LFGAIN[3] ® Mindspeed Technologies Registers LFGAIN[2] LFGAIN[1] LFGAIN[0] R/W 40 ...

Page 49

... Preliminary Information / Mindspeed Proprietary and Confidential Scale Factor CLADR Reference 1 CLADR = CLADI 2 CLADR = CLADI/2 4 CLADR = CLADI/4 8 CLADR = CLADI/8 16 CLADR = CLADI/16 32 CLADR = CLADI/32 64 CLADR = CLADI/64 128 CLADR = CLADI/128 ® Mindspeed Technologies Registers [RSCALE] to form CLADR 41 ...

Page 50

... E1 8192 16,384 32,768 1544 3088 6176 12,352 24,704 2560 1536 (unframed) <Invalid> <Invalid> Picks one of 14 CLAD divider chain frequencies to output — ® Mindspeed Technologies Registers R OSEL[2] OSEL[1] OSEL[0] 42 ...

Page 51

... CLADV / 2 4 CLADV / 4 8 CLADV / 8 16 CLADV / 16 32 CLADV / 32 64 CLADV / 64 128 CLADV / 128 CTEST[4] CTEST[ — CPDERR — ® Mindspeed Technologies Registers R VSCALE[2] VSCALE[1] VSCALE[0] [VSCALE] before use in the R CTEST[2] CTEST[1] CTEST[ — — CPD_INT R 0 ...

Page 52

... Preliminary Information / Mindspeed Proprietary and Confidential Real-time indicator of the CLAD phase detector status. CPDERR — F_ADDR[4] F_ADDR[ A_TEST[4] A_TEST[ A_TEST[12] A_TEST[11 F_TR[4] F_TR[3] ® Mindspeed Technologies Registers F_ADDR[2] F_ADDR[1] F_ADDR[ A_TEST[2] A_TEST[1] A_TEST[ A_TEST[10] A_TEST[9] A_TEST[ F_TR[2] ...

Page 53

... Preliminary Information / Mindspeed Proprietary and Confidential F_TR[10] F_TR[ F_TR[15] F_TR[14 F_TR[20] F_TR[19 F_TR[25] F_TR[24 D_CH[1] D_CH[0] ® Mindspeed Technologies Registers F_TR[8] F_TR[7] F_TR[ F_TR[13] F_TR[12] F_TR[11 F_TR[18] F_TR[17] F_TR[16 F_TR[23] F_TR[22] F_TR[21] 2 ...

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... JEN enables the JAT in the receive or the transmit path (determined — Writing JCENTER resets the elastic store write pointer and forces — ± (128 bits) of accumulated phase offset. Elastic Store Size 8 Bits 16 Bits 32 Bits 64 Bits 128 Bits ® Mindspeed Technologies Registers JSIZE[2] JSIZE[1] JSIZE[0] R/W 46 ...

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... Enables HDB3 or B8ZS zero code suppression encoding/ — RPOSO/RNEGO data outputs are replaced by the data slicer output, and — Disables the receiver equalizer. (Test mode only) Compensates for 20 dB resistive signal attenuation caused by placement — ® Mindspeed Technologies Registers R ATTN — ...

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... Unused channels can be put into a low power mode in order to minimize Adjusts the transmit output level to compensate for series — Enables custom transmit pulse transmission. The — Each positive or negative pulse output on XTIP/ — ® Mindspeed Technologies Registers R PULSE[2] PULSE[1] PULSE[0] ...

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... Twisted Pair 100 Ω Twisted Pair LLOOP RLOOP If AISCLK is active, the transmitter clock is automatically — When activated manually (TAIS) or automatically — lists transmitter operating modes resulting from various configuration ® Mindspeed Technologies Registers Application T1 DSX T1 DSX T1 DSX T1 DSX T1 DSX CSU/NCTE 2 1 ...

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... BPV is asserted only for bipolar violations which are not part of the ZCS code. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential RLOOP Loopback 0 No loopback 1 Remote Line Loopback 0 Local Analog Loopback 1 Local Digital Loopback TLOS TSHORT ® Mindspeed Technologies Registers JERR BPV — ...

Page 59

... TLOS Enables Transmit Short Circuit TSHORT Enables Jitter Attenuator Error JERR Enables Bipolar Violation BPV 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential TLOS TSHORT TLOS TSHORT ® Mindspeed Technologies Registers JERR BPV — R JERR BPV — ...

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... SH4 SH3 SH4 SH3 SH4 SH3 SH4 SH3 A_TEST[20] A_TEST[19 A_TEST[28] A_TEST[17] ® Mindspeed Technologies Registers SH2 SH1 SH0 SH2 SH1 SH0 SH2 SH1 SH0 SH2 SH1 SH0 A_TEST[18] A_TEST[17] ...

Page 61

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Specifications Parameter pins or V pins ® Mindspeed Technologies Minimum Maximum Units –0.5 5.0 V — 0.5 V –1 ...

Page 62

... Table 4-2. Peak Reflow Temperature for Green (RoHS) Compliant Version of the CX28380 G device Device Package Type CX28380 128-Pin MQFP 1. For more detailed information, please refer to Mindspeed SMT Application Note for the Pb-free devices and the detail explanation of how JEDEC determines the reflow temperatures based on Package thickness: http://mindspeed ...

Page 63

... Electrical/Mechanical Specifications Transmitter Termination Option A B 0.95 1.20 0.70 0.75 1.05 1.15 Parameter Min –40 –40 — — Minimum — — — µ A) 2.5 µ A) — 2.0 2.2 –0.5 –100 @ 0 V ® Mindspeed Technologies Units 1.00 1.20 0.70 W 0.70 0.75 0.60 W 1.10 1.20 0.85 W Max Units +120 °C +125 °C 36 °C/W 3 °C/W Typical Maximum Units 45 60 ...

Page 64

... Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications Minimum –10 –10 — — — 37 — — Minimum Receiver 0 0 C-1). –18 23 –0.1 –0.4 — — — — — Transmitter ® Mindspeed Technologies Typical Maximum Units 1 10 µ µ 160 mA 0 µ ...

Page 65

... GENERAL NOTE: 1. See Figure 4-1. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Minimum 10 — — 2.7 coax(1) 2.14 –0.237 Ω UTP(1) 2.7 –0.3 –5 — 12 –25 — Parameter ® Mindspeed Technologies Electrical/Mechanical Specifications Typical Maximum Units 100 — — k — 3.0 3.3 2.37 2.6 0 +0.237 3.0 3.3 0 +0.3 — ...

Page 66

... GENERAL NOTE: 1. Output signals: RCKO[n], RPOSO[n], RNEGO[n], XTIP[n], XRING[n], CLK1544, CLK2048, CLADO, JATERR[2:4], SDO, 2. Sees Figure 4-3 and 4-4. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications 1 Parameter 1 Parameter ® Mindspeed Technologies 2 Minimum Maximum Units 488 — ns Minimum Maximum Units 500 — ...

Page 67

... RLOS Timing Parameters Symbol 1 RLOS width low (T1 mode) RLOS width low (E1 mode) GENERAL NOTE: 1. See Figure 4-5 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications 1 2 Three-State 2 Note 1 Note 1 Parameter ® Mindspeed Technologies 3 Minimum Maximum Units 640 — ns 480 — ...

Page 68

... CLK1544, CLK2048, CLADO, CLK32 GENERAL NOTE: 1. See Figure 4-6. Figure 4-6. CLAD Timing Diagram 90% 10% 3 8380_018 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications 1 Parameter ® Mindspeed Technologies Minimum Maximum Units 9.999 10.001 MHz 8 16,384 kHz — 16,384 MHz 32.768 ...

Page 69

... TCLK[n] duty cycle (output) 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications Parameter Minimum 1.544 MHz – 309 Hz 2.048 MHz – 409 ® Mindspeed Technologies Minimum Maximum Units 1,544 or 2,048 kHz (Locked to line rate — — ...

Page 70

... Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications Minimum — Minimum 10 — 125 100 — SCLK Cycles ® Mindspeed Technologies Maximum Units 20 ns — ns — ns Maximum Units — MHz — ns — ns — ns — ns — ...

Page 71

... Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications Minimum — — Read Timing Address/Control Byte Register Data Byte Write Timing Address/Control Byte Register Data Byte ® Mindspeed Technologies Maximum Units ...

Page 72

... Figure 4-11. Host Serial Port Read Timing SCLK 4 SDI SDO 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Address/Command Write Data Byte Byte Address/Command Byte 8 D5 ® Mindspeed Technologies Electrical/Mechanical Specifications Read Data Byte 100048_003 64 ...

Page 73

... TDO enable (Low Z) after TCK falling edge 7 TDO disable (High Z) after TCK low GENERAL NOTE: 1. See Figure 4-13. 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential 1 Address/Command Byte Parameter ® Mindspeed Technologies Electrical/Mechanical Specifications Read Data Byte 100048_004 Minimum Maximum Units 80 — 80 — 5 — ...

Page 74

... Figure 4-13. JTAG Interface Timing Diagram TDO 6 TCK TDI TMS 8380_024 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Electrical/Mechanical Specifications ® Mindspeed Technologies 7 66 ...

Page 75

... DETAIL Ref. 128-PIN MQFP (GP00-D448) ® Mindspeed Technologies ALL DIMENSIONS IN MILLIMETERS MIN. NOM. MAX 3.40 3.04 0.25 0.33 2.57 2.87 2.71 23.20 REF. 20.0 REF. 18.5 REF 17.20 RE. 14.0 REF 12.5 REF 0.73 1.03 0.88 1.6 REF 0.50 BSC 0.13 0.28 ---- 0.13 ---- 0.23 ...

Page 76

... DS1 Automatic Facility Protection Switching (AFPS) Rqts. and Objectives Transport Systems Generic Requirements ISDN Primary Rate Interface Guidelines for Customer Premises Equipment ETSI ISDN Primary Rate User-Network Interface Specification and Test Principles Access Digital Section for ISDN Primary Rate ITU-T ® Mindspeed Technologies Title 68 ...

Page 77

... Unbalance about Earth of Telecommunication Installations Resistibility of Switching Equipment to Overvoltages and Overcurrents Application of Maintenance Principles to ISDN Primary Rate Access IEEE Standard Test Access Port and Boundary Scan Architecture (JTAG) Environment Simulation Metallic Voltage Surge Signal Power Limitations ® Mindspeed Technologies Applicable Standards Title Synchronous Digital 69 ...

Page 78

... REFCKI crystal oscillator specifications. RX Value (line) 2:1 CT (circuit) Pulse (1) T1124 1 Ω maximum OCL 1 °C 1500 V rms 0.8 µH 10 MHz ±50 ppm ±32 ppm 3.3 V Logic, CMOS or TTL 2 ppm/year, 10 ppm maximum GG ® Mindspeed Technologies TX Value (circuit) 1:2 (line) Value pin description in Chapter 1. 70 ...

Page 79

... A Appendix C: Application 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies 71 ...

Page 80

... Figure C-1. Minimum Hardware Configuration 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ® Mindspeed Technologies Application 8380_026 72 ...

Page 81

... Table C-1. CX28380-16 Typical Register Settings for T1 Register Offset Name 1 GCR 2 CLAD_CR 3 CSEL 4 CPHASE 5 CTEST 6 CSTAT 7 FREG 8 TESTA1 9 TESTA2 A FUSE-CH1 B FUSE-CH2 C FUSE-CH3 D FUSE-CH4 E FUSE-RES F TESTD 10,20,30,40 JAT_CR 11,21,31,41 RLIU_CR 12,22,32,42 TLIU_CR 13,23,33,43 LIU_CTL 15,25,35,45 ALARM 16,26,36,46 ISR 17,27,37,47 IER 18,28,38,48 SHAPE[0] 19,29,39,49 SHAPE[1] 1A,2A,3A,4A SHAPE[2] 1B,2B,3B,4B SHAPE[3] 1C,2C,3C,4C SHAPE[4] 1D,2D,3D,4D SHAPE[5] 1E,2E,3E,4E SHAPE[6] 1F,2F,3F,4F SHAPE[7] 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential ...

Page 82

... Table C-1. CX28380-16 Typical Register Settings for T1 Register Offset Name 50 TESTA3 51 TESTA4 52-7F RESERVED Table C-2. CX28380-16 Typical Register settings for E1-120 Register Offset Name 1 GCR 2 CLAD_CR 3 CSEL 4 CPHASE 5 CTEST 6 CSTAT 7 FREG 8 TESTA1 9 TESTA2 A FUSE-CH1 B FUSE-CH2 C FUSE-CH3 D FUSE-CH4 E FUSE-RES F TESTD 10,20,30,40 JAT_CR 11,21,31,41 RLIU_CR 12,22,32,42 TLIU_CR 13,23,33,43 LIU_CTL ...

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... Table C-2. CX28380-16 Typical Register settings for E1-120 Register Offset Name 19,29,39,49 SHAPE[1] 1A,2A,3A,4A SHAPE[2] 1B,2B,3B,4B SHAPE[3] 1C,2C,3C,4C SHAPE[4] 1D,2D,3D,4D SHAPE[5] 1E,2E,3E,4E SHAPE[6] 1F,2F,3F,4F SHAPE[7] 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Basic E1 Configuration Value ® Mindspeed Technologies Application Description 75 ...

Page 84

... HDSL high bit-rate digital subscriber line inter-integrated circuit ISDN Integrated Services Digital Network ITU–T International Telegraph and Telephone Consultative Committee JAT jitter attenuator JTAG Joint Test Action Group 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Definition ® Mindspeed Technologies 76 ...

Page 85

... Synchronous Optical Network TAP test access port TLOC transmit loss of clock TLOS transmit loss of signal TZCS transmit zero code suppression UI unit interval UTP unshielded twisted pair ZCS zero code suppression 29380-DSH-001-B Preliminary Information / Mindspeed Proprietary and Confidential Definition ® Mindspeed Technologies Acronym List 77 ...

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... Newport Beach, CA 92660 © 2006 Mindspeed Technologies ® , Inc. All rights reserved. Information in this document is provided in connection with Mindspeed Technologies ® ("Mindspeed ® ") products. These materials are provided by Mindspeed as a service to its customers and may be used for informational purposes only. Except as provided in Mindspeed’s Terms and Conditions of Sale for such products or in any separate agreement related to this document, Mindspeed assumes no liability whatsoever ...

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