am79c982 Advanced Micro Devices, am79c982 Datasheet - Page 17

• Manufacturer Part Number: am79c982
• Description: Basic Integrated Multiport Repeater Bimr
• Manufacturer: Advanced Micro Devices

Set (Write) Opcodes
bIMR 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. Select code for the twisted pair ports (TP0 to TP7).
Commands
###
000
001
010
011
100
101
110
111
bIMR8
TP0
TP1
TP2
TP3
TP4
TP5
TP6
TP7
Table 2. Management Port Command Summary
bIMR4
TP0
TP1
TP2
TP3
—
—
—
—
PRELIMINARY
Am79C982
SI Data
0000 10SA
0001 1111
0001 0000
0010 1111
0011 1111
0010 0### (note 2)
0011 0###
0100 0###
0101 0###
0111 0###
1000 1111
1000 0000
1010 0000
1101 0000
1110 0000
1111 0000
1111 1111
1000 1011
1000 1101
1000 1001
0110 0###
SO Data
C7...C0 (bIMR8),
C3...C0 (bIMR4)
E7...E0 (bIMR8),
E3...E0 (bIMR4)
L3...L0 (bIMR4)
P3...P0 (bIMR4)
M000 0000
XXXX 0101
PBSL 0000
PBSL 0000
L7...L0 (bIMR8),
P7...P0 (bIMR8),
PBSL 0000
PBSL 0000
AMD
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