am79c981 Advanced Micro Devices, am79c981 Datasheet - Page 15

• Manufacturer Part Number: am79c981
• Description: Integrated Multiport Repeater Plus? Imr+? ??9
• Manufacturer: Advanced Micro Devices

Set (Write) Opcodes
IMR+ Chip Programmable Options
Alternate AUI Partitioning Algorithm
Alternate TP Partitioning Algorithm
AUI Port Disable
AUI Port Enable
TP Port Disable
TP Port Enable
Disable Link Test Function (per TP port)
Enable Link Test Function (per TP port)
Disable Automatic Receiver Polarity Reversal (per TP port)
Enable Automatic Receiver Polarity Reversal (per TP port)
Get (Read) Opcodes
AUI Port Status (B, S, L Cleared)
TP Port Partitioning Status
Bit Rate Status of TP ports
Link Test Status of TP ports
Receive Polarity Status of all TP ports
MJLP Status
Version
AUI Port Status (S, L Cleared)
AUI Port Status (B Cleared)
AUI Port Status (None Cleared)
Notes:
1. Unused opcodes are reserved for future use.
2. ### is the port number (000 to 111 for TP0 to TP7)
Commands
Table 2. Management Port Command Summary
PRELIMINARY
Am79C981
0000 1CSA
0001 1111
0001 0000
1000 1111
1000 0000
1010 0000
1101 0000
1110 0000
1111 0000
1111 1111
1000 1011
1000 1101
1000 1001
0010 1111
0011 1111
0010 0###
0011 0###
0100 0###
0101 0###
0110 0###
0111 0###
SI Data
XXXX 0001
PBSL 0000
M000 0000
PBSL 0000
PBSL 0000
PBSL 0000
SO Data
C7...C0
P7...P0
E7...E0
L7...L0
AMD
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