![](http://datasheet.mmic.net.cn/330000/PM4351_datasheet_16444271/PM4351_395.png)
STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
371
Action
Addr
Data
Effect
Write RX-ELST Configuration
Register
Write TX-ELST Configuration
Register
Write T1 XBAS Configuration
Register
1CH
00H
Select 193-bit frame format.
20H
00H
Select 193-bit frame format.
54H
04H
or
0CH
04H
Select AMI, enable for T1DM
in transmitter
Write T1 FRMR Configuration
Register
Write ALMI Configuration
Register
48H
Select T1DM, 4 of 12 OOF
threshold
Select T1DM with standard
Red integration
Select T1DM with alternate
Red integration
Enable Inband Code detection
60H
04H
or
0CH
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 T1DM
4FH
44H
50H
00H
Table 81
- E1 Frame Format
Action
Addr
Data
Effect
Write Global Configuration
Register
Write RXCE Receive Data
Link 1 Control Register
Write TXCI Transmit Data
Link 1 Control Register
Write E1 TRAN Configuration
Register
Write E1 FRMR Frame
Alignment Options Register
00H
01H
Select E1 mode.
028H
00H
Disable extraction of T1 data
link for HDLC receiver #1.
Disable insertion of T1 data
link from HDLC transmitter #1.
Enable CRC multiframe
generation
Enable CRC multiframe
search algorithm
038H
00H
80H
70H
90H
80H