TFRA08C13-DB AGERE [Agere Systems], TFRA08C13-DB Datasheet - Page 144

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

TFRA08C13 OCTAL T1/E1 Framer
Framer Register Architecture
Table 116. Line Code Option Bits Decoding (FRM_PR8) (Y68)
Framer CRC Control Option Register (FRM_PR9)
This register defines the CRC options for the framer. The default setting is 00 (hex).
Table 117. CRC Option Bits Decoding (FRM_PR9) (Y69)
144
B8ZS (T/R)
ZCS (T/R)
HDB3 (T/R)
Single Rail (DEFAULT)
AMI (T/R)
B8ZS (T), AMI (R)
ZCS (T), B8ZS (R)
AMI (T), B8ZS (R)
Loss of Frame Alignment Due to Excessive CRC Errors
(ESF 320, CEPT 915 in a one-second interval)
CRC-4 with 100 ms Timer
CRC-4 Interworking Search with 400 ms Timer
CRC-4 with 990 REB Counter
CRC-4 with 990 REB Counter: A Bit = 1 Restart
CRC-4 with 990 REB Counter: Sa6-F or Sa6-E Restart
XCRC-4/R-NO CRC-4
X-NOCRC-4/RCRC4
CRC Default Mode (No CRC)
Line Code Format
FRM_PR9 CRC Options
Bit 7
LC2
0
0
0
1
0
1
1
1
(continued)
Bit 6
LC1
0
0
1
1
1
0
0
1
Bit 5
LC0
0
1
0
0
1
0
1
1
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0
1
0
0
0
0
0
1
0
Bit 4
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
0
Bit 3
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
0
Bit 2
X
X
X
X
X
1
1
1
0
X
X
X
X
X
X
X
X
Preliminary Data Sheet
Bit 1
X
X
X
X
X
X
X
1
0
Lucent Technologies Inc.
X
X
X
X
X
X
X
X
Lucent Technologies Inc.
X
X
X
X
X
X
X
1
0
Bit 0
October 2000
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
0
1
1
1
1
1
1
0
1
0