![](http://datasheet.mmic.net.cn/330000/PM5381_datasheet_16444347/PM5381_401.png)
PRELIMINARY
PMC-Sierra, Inc.
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
380
Register 079CH: SIRP Configuration
Bit
Type
Function
Default
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
RDIPRIHI[1]
RDIPRIHI[0]
RDIPRIMID[1]
RDIPRIMID[0]
LCD[1]
LCD[0]
X
X
X
X
X
X
X
X
X
X
0
0
0
0
1
0
R/W
R/W
R/W
R/W
R/W
R/W
LCD[1:0]:
The LCD[1:0] bits represent the 2 bit programmable RDI code generated when a Loss of ATM
Cell Delineation (LCD) event is detected.
RDIPRIMID[1:0]
The RDIPRIMID[1:0] bits specify which two-bit alarm code point (RDI) will be treated as the
second highest priority code. These bits combined with the RDIPRIHI bits allow almost any
priority scheme to be specified. The bits are interpreted as shown in RDIPRIHI[1:0]
The RDIPRIHI[1:0] bits specify which two-bit alarm code point (RDI) will be treated as the
highest priority code. High priority codes will replace low priority codes at the next transmit
G1 byte, instead of allowing 10/20 copies to be sent. The highest priority alarm is sent 10/20
times before replacement is allowed.
Table 16.
RDIPRIHI[1:0]
The RDIPRIHI[1:0] bits specify which two-bit alarm code point (RDI) will be treated as the
highest priority code. High priority codes will replace low priority codes at the next transmit
G1 byte, instead of allowing 10/20 copies to be sent. The highest priority alarm is sent 10/20
times before replacement is allowed.