DS2155GB/T&R Maxim Integrated, DS2155GB/T&R Datasheet - Page 60
DS2155GB/T&R
Manufacturer Part Number
DS2155GB/T&R
Description
Network Controller & Processor ICs
Manufacturer
Maxim Integrated
Datasheet
1.DS2155GNB.pdf
(238 pages)
Specifications of DS2155GB/T&R
Part # Aliases
90-2155G-BTR
- Current page: 60 of 238
- Download datasheet (2Mb)
10.3 E1 Information Registers
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 0/CAS Resync Criteria Met Event (CASRC). Set when two consecutive CAS MF alignment words are
received in error.
Bit 1/FAS Resync Criteria Met Event (FASRC). Set when three consecutive FAS words are received in error.
Note: During a CRC resync the FAS synchronizer is brought online to verify the FAS alignment. If during this
process an FAS emulator exists, the FAS synchronizer may temporarily align to the emulator. The FASRC will go
active indicating a search for a valid FAS has been activated.
Bit 2/CRC Resync Criteria Met Event (CRCRC). Set when 915/1000 codewords are received in error.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 0/CRC4 MF Sync Active (CRC4SA). Set while the synchronizer is searching for the CRC4 MF alignment
word. This is a read-only, non-latched, real-time bit. It is not necessary to precede the read of this bit with a write.
Bit 1/CAS MF Sync Active (CASSA). Set while the synchronizer is searching for the CAS MF alignment word.
This is a read-only, non-latched, real-time bit. It is not necessary to precede the read of this bit with a write.
Bit 2/FAS Sync Active (FASSA). Set while the synchronizer is searching for alignment at the FAS level. This is a
read-only, non-latched, real-time bit. It is not necessary to precede the read of this bit with a write.
Bits 3 to 7/CRC4 Sync Counter Bits (CSC0, CSC2 to CSC4). The CRC4 sync counter increments each time the
8ms CRC4 multiframe search times out. The counter is cleared when the framer has successfully obtained
synchronization at the CRC4 level. The counter can also be cleared by disabling the CRC4 mode (E1RCR1.3 = 0).
This counter is useful for determining the amount of time the framer has been searching for synchronization at the
CRC4 level. ITU G.706 suggests that if synchronization at the CRC4 level cannot be obtained within 400ms, then
the search should be abandoned and proper action taken. The CRC4 sync counter rolls over. CSC0 is the LSB of
the 6-bit counter. (Note: The bit next to LSB is not accessible. CSC1 is omitted to allow resolution to >400ms
using 5 bits.) These are read-only, non-latched, real-time bits. It is not necessary to precede the read of these bits
with a write.
CSC5
—
7
0
7
0
CSC4
6
0
—
INFO3
Information Register 3
12h
INFO7
Information Register 7 (Real-Time, Non-Latched Register)
30h
6
0
CSC3
5
0
—
5
0
CSC2
4
0
—
4
0
60 of 238
CSC0
3
0
—
3
0
FASSA
CRCRC
2
0
2
0
CASSA
FASRC
1
0
1
0
CRC4SA
CASRC
0
0
0
0
Related parts for DS2155GB/T&R
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Network Controller & Processor ICs
Manufacturer:
Maxim Integrated
Datasheet:
Part Number:
Description:
IC TXRX T1/E1/J1 1-CHIP 100CSBGA
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
IC TXRX T1/E1/J1 1 CHIP 100CSBGA
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
IC TXRX T1/E1/J1 1-CHIP 100CSBGA
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Network Controller & Processor ICs T1/E1/J1 Single-Chip gle-Chip Transceiver
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products