PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
Registers 03CH, 13CH, 23CH and 33CH: IBCD Configuration
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
Reserved
Unused
Unused
Unused
DSEL1
DSEL0
ASEL1
ASEL0
0
X
X
X
0
0
0
0
R/W
R/W
R/W
R/W
These registers provide the selection of the Activate and De-activate T1
loopback code lengths (from 3 bits to 8 bits) as follows:
DEACTIVATE Code
ACTIVATE Code
CODE LENGTH
DSEL1
DSEL0
ASEL1
ASEL0
0
0
1
1
0
1
0
1
0
0
1
1
0
1
0
1
5 bits
6 (or 3*) bits
7 bits
8 (or 4*) bits
*Note:
3 and 4 bit code sequences can be accommodated by configuring the IBCD for 6
or 8 bits and by programming two repetitions of the code sequence.
Reserved:
The reserved bit must be programmed to logic 0 for correct operation.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
141
PMC [ PMC-SIERRA, INC ]
