TFRA08C13-DB AGERE [Agere Systems], TFRA08C13-DB Datasheet - Page 136

• Manufacturer Part Number: TFRA08C13-DB
• Description: TFRA08C13 OCTAL T1/E1 Framer
• Manufacturer: AGERE [Agere Systems]

TFRA08C13 OCTAL T1/E1 Framer
Framer Register Architecture
CRC Error Counter Register (FRM_SR12—FRM_SR13)
This register contains the 16-bit count of CRC errors. CRC errors are not counted during loss of CRC multiframe
alignment.
Table 79. CRC Error Counter Registers (FRM_SR12—FRM_SR13) (Y0C—Y0D)
E-Bit Counter Register (FRM_SR14—FRM_SR15)
This register contains the 16-bit count of received E bit = 0 events. E bits are not counted during loss of CEPT
CRC-4 multiframe alignment.
Table 80. E-Bit Counter Registers (FRM_SR14—FRM_SR15) (Y0E—Y0F)
CRC-4 Errors at NT1 from NT2 Counter Registers (FRM_SR16—FRM_SR17)
This register contains the 16-bit count of each occurrence of Sa6 code 001X, detected synchronously to the CEPT
CRC-4 multiframe.
Table 81. CRC-4 Errors at NT1 from NT2 Counter Registers (FRM_SR16—FRM_SR17) (Y10—Y11)
E Bit at NT1 from NT2 Counter Registers (FRM_SR18—FRM_SR19)
This register contains the 16-bit count of each occurrence of Sa6 code 00X1, detected synchronously to the CEPT
CRC-4 multiframe. E bits are not counted during loss of CEPT CRC-4 multiframe alignment.
Table 82. E Bit at NT1 from NT2 Counter (FRM_SR18—FRM_SR19) (Y12—Y13)
136
FRM_SR12
FRM_SR13
FRM_SR14
FRM_SR15
FRM_SR16
FRM_SR17
FRM_SR18
FRM_SR19
Register
Register
Register
Register
Byte
MSB
Byte
MSB
Byte
MSB
Byte
MSB
LSB
LSB
LSB
LSB
7—0
7—0
7—0
7—0
7—0
7—0
7—0
7—0
Bit
Bit
Bit
Bit
CEC15—CEC8 CRC Errored Counter.
REC15—REC8 E-Bit Counter.
CNT15—CNT8
ENT15—ENT8
CEC7—CEC0
REC7—REC0
CNT7—CNT0
ENT7—ENT0
Symbol
Symbol
Symbol
Symbol
(continued)
CRC Errored Counter.
E-Bit Counter.
CRC-4 Errors at NT1 Counter.
CRC-4 Errors at NT1 Counter.
E Bit at NT1 Counter.
E Bit at NT1 Counter.
Description
Description
Description
Description
Preliminary Data Sheet
Lucent Technologies Inc.
Lucent Technologies Inc.
October 2000