TTSV02622V2-DB AGERE [Agere Systems], TTSV02622V2-DB Datasheet

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TTSV02622V2-DB

Manufacturer Part Number
TTSV02622V2-DB
Description
STS-24 Backplane Transceiver
Manufacturer
AGERE [Agere Systems]
Datasheet
Features
TTSV02622 STS-24 Backplane Transceiver
Allows wide range of applications for SONET net-
work termination application as well as generic
data moving for high-speed backplane data
transfer.
Clock/data recovery (CDR) function for high-speed
serial backplane data transfer.
CDR function uses Agere Systems Inc. proven
622 Mbits/s serial interface core.
Two-channel CDR function provides 622 Mbits/s
serial interface per channel for a total chip
bandwidth of 1.24 Gbits/s (full duplex).
Low-voltage differential signaling (LVDS) I/Os for
CDR and reference clock signals.
8:1 data multiplexing/demultiplexing (MUX/
deMUX) for 77.76 MHz byte-wide data processing.
CDR meets B jitter tolerance specification of ITU-T
recommendation G.958.
Powerdown option of CDR receiver on a per-
channel basis.
Pseudo-SONET protocol including A1/A2 framing.
SONET scrambling and descrambling for required
ones density (optional).
Selected transport overhead (TOH) bytes insertion
and detection for interdevice communication via
the TOH serial link.
Streamlined pointer processor (pointer mover) for
8 kHz frame alignment.
FIFOs for alignment of incoming data to reference
clock.
FIFOs optionally align incoming data across all two
channels for synchronous transport signal STS-24
operation (in dual STS-12 format).
Independent data stream enables in pseudo-
SONET processor.
Supports STS-12/STS-24 redundancy by either
software or hardware control for protection
switching applications.
Description
The TTSV02622 can support a 1.24 Gbits/s interface
for backplane connections. The 1.24 Gbits/s inter-
face is implemented as dual 622 Mbits/s LVDS links.
The HSI macrocell is used for clock/data recovery
(CDR) and MUX/deMUX between 77.76 MHz byte-
wide internal data buses and the 622 Mbits/s external
serial links.
Each 622 Mbits/s serial link uses a pseudo-SONET
protocol. SONET A1/A2 framing is used on the link
for locating the 8 kHz frame location. The link is also
scrambled using the standard SONET scrambler def-
inition to ensure proper transitions on the link for
improved CDR performance. Selectable transport
overhead (TOH) bytes are insertable in the transmit
direction. All bytes can be transparently passed
through the device, or all bytes can be inserted via
the TOH serial link. In addition, certain microproces-
sor unit (MPU) selectable bytes can be passed
through transparently while in insert mode.
Elastic buffers (FIFOs) are used to align each incom-
ing STS-12 link to the core 77.76 MHz clock and
8 kHz frame. These FIFOs will absorb delay varia-
tions between 622 Mbits/s links due to timing skews
between cards and along backplane traces. For
greater variations, a streamlined pointer processor
(pointer mover) within the device will align the 8 kHz
frames regardless of their incoming frame position.
The TTSV02622 supports dual STS-12 mode of
operation on the input/output ports. STS-24 is also
supported, but it must be received in the dual
STS-12 format. When operating in dual STS-12
mode, each of the independent byte streams carries
an entire STS-12 within it. Figure 1 on page 2 reveals
the byte ordering of the individual STS-12 streams.
Low-power 3.3 V supply.
–40 °C to +125 °C industrial temperature range.
272-pin ball grid array (PBGA) package.
Data Sheet
June 2003

Related parts for TTSV02622V2-DB

TTSV02622V2-DB Summary of contents

Page 1

TTSV02622 STS-24 Backplane Transceiver Features Allows wide range of applications for SONET net- work termination application as well as generic data moving for high-speed backplane data transfer. Clock/data recovery (CDR) function for high-speed serial backplane data transfer. CDR function uses ...

Page 2

TTSV02622 STS-24 Backplane Transceiver Description (continued STS-24 IN DUAL STS-12 FORMAT DUAL STS-12 Figure 1. Byte Ordering on Input/Output Interface in STS-12 Mode ...

Page 3

... Transport Overhead Serial Link ........................................................................................................................... 23 A1/A2 Frame Insert and Corruption ..................................................................................................................... 23 B1 Calculation and Insertion ................................................................................................................................ 23 Stream Disable .................................................................................................................................................... 23 Scrambler............................................................................................................................................................. 23 Receiver Block........................................................................................................................................................ 24 Framer Subblock (Backplane to Line).................................................................................................................. 24 B1 Calculate and Descramble (Backplane to Line) ............................................................................................. 27 Internal Parity Generation .................................................................................................................................... 27 FIFO Subblock (Backplane to Line) ..................................................................................................................... 28 Pointer Mover Subblock (Backplane to Line)....................................................................................................... 28 Miscellaneous Functions ........................................................................................................................................ 31 K1/K2, A1/A2 Handling ...

Page 4

... Figure 5. Interior View of TTSV02622 .................................................................................................................... 18 Figure 6. Interconnect of Streams for FIFO Alignment........................................................................................... 19 Figure 7. Transmitter Block .................................................................................................................................... 22 Figure 8. Receiver Block ........................................................................................................................................ 24 Figure 9. Framer State Machine............................................................................................................................. 26 Figure 10. Pointer Mover State Machine ................................................................................................................ 30 Figure 11. LVDS Driver and Receiver and Associated Internal Components ........................................................ 51 Figure 12. LVDS Driver and Receiver .................................................................................................................... 51 Figure 13. LVDS Driver .......................................................................................................................................... 51 Figure 14 ...

Page 5

June 2003 Contents Table 1. Pin Assignments for 272-Pin PBGA by Pin Number Order ........................................................................ 7 Table 2. Pin Assignments for 272-Pin PBGA by Signal Name............................................................................... 10 Table 3. Pin Descriptions ....................................................................................................................................... 12 Table 4. Valid Starting Positions for a ...

Page 6

TTSV02622 STS-24 Backplane Transceiver Pin Information Figure 2. Pin Diagram of 272-Pin PBGA (Bottom View June 2003 A1 BALL ...

Page 7

June 2003 Pin Information (continued) Table 1. Pin Assignments for 272-Pin PBGA by Pin Number Order Pin Signal Name Pin TCK B2 A3 TDI B3 A4 TMS B4 A5 DXP ...

Page 8

TTSV02622 STS-24 Backplane Transceiver Pin Information (continued) Table 1. Pin Assignments for 272-Pin PBGA by Pin Number Order (continued) Pin Signal Name Pin E1 STS_INA_P H17 E2 STS_INA_N H18 E3 CTAP_REFA H19 E4 NC H20 E17 NC J1 E18 NC ...

Page 9

June 2003 Pin Information (continued) Table 1. Pin Assignments for 272-Pin PBGA by Pin Number Order (continued) Pin Signal Name Pin U1 TSTCLK V1 U2 TSTSHFTLD V2 U3 ETOGGLE TSTMUX3S ...

Page 10

TTSV02622 STS-24 Backplane Transceiver Pin Information (continued) Table 2. Pin Assignments for 272-Pin PBGA by Signal Name Signal Name Pin Signal Name BYPASS T2 CPU_ADDR0 Y8 CPU_ADDR1 W8 CPU_ADDR2 V8 CPU_ADDR3 Y7 CPU_ADDR4 W7 DOUTA_C1J1 CPU_ADDR5 V7 DOUTA_PAR CPU_ADDR6 U7 ...

Page 11

June 2003 Pin Information (continued) Table 2. Pin Assignments for 272-Pin PBGA by Signal Name (continued) Signal Name Pin Signal Name L18 NC L19 NC L20 NC M20 ...

Page 12

TTSV02622 STS-24 Backplane Transceiver Pin Information (continued) Table 3. Pin Descriptions Pin Symbol N18, N19, N20, DINA[7:0] P17, P18, P19, P20, R19 R20 DINA_PAR R18, T17, T18, DINB[7:0] T19, T20, U18, U19, U20 V20 DINB_PAR A15, B15, C15, DOUTA[7:0] A16, ...

Page 13

June 2003 Pin Information (continued) Table 3. Pin Descriptions (continued) Pin Symbol B11 TOH_OUTB C11 RX_TOH_CKEN C12 RX_TOH_FP E1 STS_INA_P E2 STS_INA_N F1 STS_INB_P F2 STS_INB_N J1 STS_OUTA_P J2 STS_OUTA_N L1 STS_OUTB_P L2 STS_OUTB_N E3 CTAP_REFA F3 CTAP_REFB U11, V11, ...

Page 14

TTSV02622 STS-24 Backplane Transceiver Pin Information (continued) Table 3. Pin Descriptions (continued) Pin Symbol Y9 HIZ_N K1 PLL_REF M1 REF10 M2 REF14 M3 LVDS_RESH M4 LVDS_RESL A5 DXP B6 DXN K2 PLL_VDDA K3 PLL_VSSA A2 TCLK A3 TDI A4 TMS ...

Page 15

June 2003 Pin Information (continued) Table 3. Pin Descriptions (continued) Pin Symbol V2 ECSEL W1 EXDNUP U3 ETOGGLE V3 LOOPBKEN W2 TSTPHASE W3, Y3, V4, W4, TSTMUX[8:0]S Y4, U5, V5, W5, Y5 A1, D4, D8, D13 D17, H4, ...

Page 16

TTSV02622 STS-24 Backplane Transceiver Pin Information (continued) REF10 REF14 Figure 3. Suggested Schematic for 1.0 V and 1.4 V Reference Voltages 16 3.3 V 3.3 V 2. ...

Page 17

June 2003 Synchronization The incoming data from the high-speed interface (HSI) can be separated into two STS-12 channels per slice (A and B). Example of TTSV02622 alignment. There is also a provision to allow certain streams to be disabled (i.e., ...

Page 18

TTSV02622 STS-24 Backplane Transceiver Architecture (continued) 1 TOH CLK 1 TX TOH CLK ENA 1 TOH INPUT #1 INPUT BUS #1 DATA(8) PARITY(1) 1 TOH INPUT #2 INPUT BUS #2 DATA(8) PARITY(1) 1 SYSTEM FRAME 1 SYSTEM CLOCK (77.76 MHz) ...

Page 19

June 2003 Architecture (continued) The alignment FIFO allows the transfer of all data to the system clock. The FIFO sync block allows the system to be configured to allow the frame alignment of multiple slightly varying data streams (see the ...

Page 20

... This feature per-channel basis. Framer monitor: — The framer in the receive direction will report loss of frame (LOF interrupt, as well as a LOF count and errored frame count. The LOF interrupt must not be clearable as long as the channel is in the LOF state. In addition, the errored frame count must represent errored frames, and should not increment more than once per frame even if there are multiple errors ...

Page 21

June 2003 Test Features Line loopback: — There is a line loopback feature allowing the user to perform a loopback on the line side (per device control). The line frame signal used by the pointer mover is automatically replaced by ...

Page 22

TTSV02622 STS-24 Backplane Transceiver Transmit Direction (Line to Backplane) Each TOH insert block receives two byte-wide 77.76 MHz data from the line, which nominally represents two STS-12 streams (A and B). Transport overhead bytes are then optionally inserted into these ...

Page 23

June 2003 Transmit Direction (Line to Backplane) Transport Overhead Serial Link The TOH serial links are used to insert TOH bytes into the transmit data. TOH_IN and TOH_CLK_EN get retimed by TOH_CLK in order to meet setup and hold specifications ...

Page 24

... CTL) Framer Subblock (Backplane to Line) The framer block takes byte-wide data from the HSI, and outputs a byte-aligned byte-wide stream and 8 kHz sync pulse (asserted one clock before the first A1 byte). The framer algorithm determines the out-of-frame/in-frame sta- tus of the incoming data and will cause interrupts on both an errored frame and an OOF state. ...

Page 25

... Framer Subblock (Backplane to Line) Framer State Machine Figure 9 shows the state machine that controls the framer. Since the TTSV02622 is intended for use between ASICs via a backplane, there is only one errored frame state; thus, after two transitions are missed, the state machine goes into the OOF state and there is no SEF or LOF indication. ...

Page 26

... Expect A1/A2 means that row/col/STS counter values indicate time for last (twelfth) A1 byte. 26 (continued) EXPECT A1/A2 & FIND A1/A2 IN FRAME EXPECT A1/A2 & FIND A1/A2 EXPECT A1/A2 & !FIND A1/A2 OOF RESET Figure 9. Framer State Machine June 2003 EXPECT A1/A2 & !FIND A1/A2 ERRORED FRAME EXPECT A1/A2 & !FIND A1/A2 Agere Systems Inc. ...

Page 27

... AIS-L Insertion on Out of Frame If enabled via the appropriate bit in the AIS_L force on out of frame register, AIS-L is inserted into the received frame by writing all ones for all bytes of the descrambled stream when the framer indicates that an out of frame condition exists. Internal Parity Generation An even parity is generated on all data bytes and is routed in parallel with the data to be checked before the protec- tion switch MUX at the parallel output ...

Page 28

TTSV02622 STS-24 Backplane Transceiver Receiver Block (continued) FIFO Subblock (Backplane to Line) The FIFO subblock consists 10-bit FIFO per STS-12. This FIFO will be used to align up to ±154 interlink skew and to ...

Page 29

June 2003 Receiver Block (continued) Pointer Mover Subblock (Backplane to Line) Rules for Concatenation. The pointer mover block can correctly process any length of concatenation (multiple of three) as long as it begins on an STS-3 boundary (i.e., STS-1 number ...

Page 30

TTSV02622 STS-24 Backplane Transceiver Receiver Block (continued) Pointer Mover Subblock (Backplane to Line) NORM State. This state will begin whenever two consecutive NORM pointers are received. If two consecutive NORM pointers are received, such that both differ from the current ...

Page 31

June 2003 Receiver Block (continued) Pointer Mover Subblock (Backplane to Line) There is no restriction on how many or how often increments and decrements are processed. Any received incre- ment or decrement is immediately passed to the generator for implementation ...

Page 32

TTSV02622 STS-24 Backplane Transceiver Registers Definition of Register Types The TTSV02622 design contains six structural register elements: SREG, CREG, PREG, IAREG, ISREG, and IEREG. There are no mixed registers in TTSV02622. This means that all bits of a particular register ...

Page 33

June 2003 Registers (continued) Register Map Table 6. Register Map * ADDR Reg. DB7 DB6 [6:0] Type 00 SREG 01 SREG 02 SREG 03 CREG 04 CREG 05 CREG † † 06 PREG — — † † 08 CREG — ...

Page 34

TTSV02622 STS-24 Backplane Transceiver Registers (continued) Register Map (continued) Table 6. Register Map (continued) * ADDR Reg. DB7 DB6 [6:0] Type 20, 38 CREG HI-Z HI-Z CONTROL OF CONTROL TOH DATA OF OUTPUT PARALLEL OUTPUT BUS 21, 39 CREG Tx ...

Page 35

June 2003 Registers (continued) Register Map (continued) Table 6. Register Map (continued) * ADDR Reg. DB7 DB6 [6:0] Type † † 2A, 42 IAREG — — 2B, 43 IAREG AIS AIS INTERRUPT INTERRUPT FLAG FLAG 11 8 † † — ...

Page 36

TTSV02622 STS-24 Backplane Transceiver Register Descriptions Table 7. Register Description Address Bit Name (hex) 00 [7:0] FIXED ID MSB 01 [7:0] FIXED ID LSB 02 [7:0] FIXED REV 03 [7:0] SCRATCH PAD 04 [7:0] LOCKREG MSB 05 [7:0] LOCKREG LSB ...

Page 37

June 2003 Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex LVDS LPBK CONTROL 1 STS-12 SELECT [3:2] EXT PROT SW EN (bit 3) EXT PROT SW FUNC (bit TOH FRAME AND ...

Page 38

TTSV02622 STS-24 Backplane Transceiver Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex SERIAL PORT OUTPUT MUX SELECT FOR PARALLEL PORT OUTPUT MUX SELECT FOR [7:4] 0A [4:0] ...

Page 39

June 2003 Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 0C [3:0] NUMBER OF CONSECUTIVE A1/A2 ERRORS TO GENERATE [3:0] 4 LINE LPBK CONTROL 5 INPUT/OUTPUT PARALLEL BUS PARITY CONTROL 6 SCRAMBLER/ DESCREAMBLER CONTROL 7 0D ...

Page 40

TTSV02622 STS-24 Backplane Transceiver Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex INT INT [3:2] 4 PER DEVICE INT [7:5] 11 [4:0] ENABLE/MASK REGISTER [7: FRAME OFFSET ...

Page 41

June 2003 Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 20 BEHAVIOR IN LOF 1 FORCE AIS-L CONTROL 2 TOH SERIAL OUTPUT PORT PAR ERR INS CMD 3 Rx K1/K2 SOURCE SELECT 4 ...

Page 42

TTSV02622 STS-24 Backplane Transceiver Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 22 SOURCE SELECT SOURCE SELECT SOURCE SELECT SOURCE SELECT 4 Tx ...

Page 43

June 2003 Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 25 CONCAT INDICATION 1 1 CONCAT INDICATION 4 2 CONCAT INDICATION 7 3 CONCAT INDICATION 10 4 CONCAT INDICATION 2 5 CONCAT INDICATION 5 ...

Page 44

TTSV02622 STS-24 Backplane Transceiver Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 28 FIFO ALIGNER THRESHOLD ERROR FLAG 1 RECEIVER INTER- NAL PATH PARITY ERROR FLAG 2 LOF FLAG 3 LVDS LINK B1 PAR- ...

Page 45

June 2003 Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 2B AIS INTERRUPT FLAGS 1 1 AIS INTERRUPT FLAGS 4 2 AIS INTERRUPT FLAGS 7 3 AIS INTERRUPT FLAGS 10 4 AIS INTERRUPT FLAGS ...

Page 46

TTSV02622 STS-24 Backplane Transceiver Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 2E OVERFLOW FLAGS OVERFLOW FLAGS OVERFLOW FLAGS OVERFLOW FLAGS 12 [7:4] 2F, ...

Page 47

June 2003 Register Descriptions (continued) Table 7. Register Description (continued) Address Bit Name (hex) 31 ENABLE/MASK ES OVERFLOW FLAG 1 1 ENABLE/MASK ES OVERFLOW FLAG 4 2 ENABLE/MASK ES OVERFLOW FLAG 7 3 ENABLE/MASK ES OVERFLOW FLAG 10 ...

Page 48

TTSV02622 STS-24 Backplane Transceiver Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso- lute stress ratings only. Functional operation of the device is not implied at these or ...

Page 49

June 2003 Thermal Characteristics The TTSV02622 6.49 mm die in the 272-pin PBGA (2-layer BGA). For thermal characteristics, the following values should be used 15.38 °C 25.09 °C 31.92 ...

Page 50

TTSV02622 STS-24 Backplane Transceiver LVDS I/O The LVDS buffers are compatible with IEEE IEEE document pertained to just the buffer itself; rather they are system-level specifications. LVDS buffers in the TTSV02622 are compliant to all parts of the IEEE 1596.3 ...

Page 51

June 2003 LVDS I/O (continued) LVDS DRIVER Figure 11. LVDS Driver and Receiver and Associated Internal Components DRIVER Agere Systems Inc. TTSV02622 STS-24 Backplane Transceiver 100 CENTER TAP EXTERNAL DEVICE PINS INTERCONNECT GPD ...

Page 52

TTSV02622 STS-24 Backplane Transceiver LVDS I/O (continued) LVDS Receiver Buffer Capabilities A disabled or unpowered LVDS receiver can withstand a driving LVDS transmitter over the full range of driver oper- ating range, for an unlimited period of time, without being ...

Page 53

June 2003 LVDS I/O (continued) Table 16. LVDS Driver dc Data* Parameter Output Voltage High Output Voltage Low Output Differential Voltage Output Offset Voltage Output Impedance, Signal Ended R Mismatch ...

Page 54

TTSV02622 STS-24 Backplane Transceiver Clock and Data Recovery (CDR) The following specifications are in reference to the clock and data recovery macro that is used for the backplane interface on the TTSV02622 chip. Input Data 622 Mbits/s scrambled data stream ...

Page 55

June 2003 Timing Characteristics All timing numbers are measured relative to 1.5 V. All outputs are driving 35 pF maximum minimum, except DB pins which drive 100 pF. SYS_CLK SYS_FP INPUT BUS Table 20. Input Parallel Port Timing ...

Page 56

TTSV02622 STS-24 Backplane Transceiver Timing Characteristics (continued) SYS_CLK SYS_FP PARALLEL DATA INPUT BUS LVDS DATA OUT Table 21. Transmitter Transport Delay Timing Requirements Symbol T Number of Clocks of Delay from Parallel Bus Input to LVDS Output PROP Notes: LVDS ...

Page 57

June 2003 Timing Characteristics (continued) SYS_CLK LINE_FP OUTPUT BUS PARITY, SPE, C1J1 PINS Table 22. Output Parallel Port Timing Requirements Symbol T Clock Period P T Clock Low Time L T Clock High Time H T Data Setup Time SU ...

Page 58

TTSV02622 STS-24 Backplane Transceiver Timing Characteristics (continued) SYS_CLK PROT_SW_A OUTPUT BUS* A SYS_CLK OUTPUT BUS A & B Table 23. Protection Switch Timing Requirements Symbol T Transport Delay from Latching of PROT_SW_A to Actual Data TR Switch T Transport Delay ...

Page 59

June 2003 Timing Characteristics (continued) SYS_CLK SYS_FP INPUT PARALLEL 36 bytes TOH BUS GUARD BAND (4 TOH CLK) TOH_CLK TOH_ CLK_ENA TOH SERIAL INPUT MSBIT( BYTE STS-1 #1 Table 24. Input Serial Port Timing Requirements ...

Page 60

TTSV02622 STS-24 Backplane Transceiver Timing Characteristics (continued) INPUT LVDS SERIAL 622 Mbits/s 36 bytes TOH DATA T TRANS_TOH TOH_CLK RX TOH TOH CLK ENA TOH SERIAL OUTPUT MSBIT( BYTE STS-1 #1 Table 25. Output Serial ...

Page 61

June 2003 Timing Characteristics (continued) CPU Interface Timing CS_N RD_WR_N ADDR[6:0] DB[7:0] INTERNAL REGISTER (SYS_CLK DOMAIN) T ADDR_MAX T T DAT_MAX, RD_WR_MAX INT_N Table 26. Write Transaction Timing Requirements Symbol T Minimum Pulse Width for CS_N PULSE T Maximum Time ...

Page 62

TTSV02622 STS-24 Backplane Transceiver Timing Characteristics (continued) CPU Interface Timing (continued) CS_N RD_WR_N ADDR[6:0] DB[7:0] T ADDR_MAX T RD_WR_MAX Table 27. Read Transaction Timing Requirements Symbol T Minimum Pulse Width for CS_N PULSE T Maximum Time from Negative Edge of ...

Page 63

June 2003 Outline Diagram 272-Pin PBGA Dimensions are in millimeters. A1 BALL IDENTIFIER ZONE MOLD COMPOUND PWB 0.36 0.60 0. CENTER ARRAY E FOR THERMAL ...

Page 64

... TTSV02622 STS-24 Backplane Transceiver Ordering Information Device Code TTSV02622V2-DB For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: docmaster@agere.com N. AMERICA: Agere Systems Inc., Lehigh Valley Central Campus, Room 10A-301C, 1110 American Parkway NE, Allentown, PA 18109-9138 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA: Agere Systems Hong Kong Ltd., Suites 3201 & ...

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