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STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
368
Table 77
- ESF Frame Format
Action
Addr
Data
Effect
Write CDRC Configuration
Register
Write RX-ELST Configuration
Register
Write TX-ELST Configuration
Register
Write T1 XBAS Configuration
Register
10H
00H
Select B8ZS line code for
receiver
Select 193-bit frame format.
1CH
00H
20H
00H
Select 193-bit frame format.
54H
3XH
Select B8ZS, enable for ESF in
transmitter (bits defined by 'X'
determine the FDL data rate &
Zero Code suppression
algorithm used)
Select ESF, 2 of 4 OOF
threshold
Select ESF, 2 of 5 OOF
threshold
Select ESF, 2 of 6 OOF
threshold
(bits defined by 'X' determine
the FDL data rate, should be
same as those written to XBAS)
Enable 8 out of 10 validation
Enable 4 out of 5 validation
Write T1 FRMR Configuration
Register
48H
1XH
or
5XH
or
9XH
Write RBOC Enable Register
6AH
00H
or
02H
1XH
Write ALMI Configuration
Register
60H
Select ESF (bits defined by 'X'
determine the ESF Yellow data
rate, should be same as those
written to T1 FRMR)
Enable Inband Code detection
Write IBCD Configuration
Register
Write IBCD Activate Code
Register
Write IBCD Deactivate Code
Register
Write SIGX Configuration
Register
4CH
00H
4EH
08H
Program Loopback Activate
Code pattern
Program Loopback Deactivate
Code pattern
Select ESF
4FH
44H
50H
04H