AM79C850 datasheet(75/97 Pages) AMD

75 / 97 page

P R E L I M I N A R Y

AMD

SUPERNET 3

SUPERNET 3 COMMAND REGISTERS

SUPERNET 3 Command Registers 1

Instruction Name

Code

Mnemonic

Software Reset

01h

Load MDR from buffer memory with MARR increment

02h

IRMEMWI

Load MDR from buffer memory without MARR increment

03h

IRMEMWO

Idle/Listen

04h

Claim/Listen

05h

Beacon/Listen

06h

Load TVX timer from TVX register

07h

Nonrestricted Token Mode

08h

Enter Nonrestricted Token Mode

09h

Enter Restricted Token Mode

0Ah

Restricted Token Mode

0Bh

Send Unrestricted Token

0Ch

Send Restricted Token

0Dh

Enter Send-Immediate Mode

0Eh

Exit Send- Immediate Mode

0Fh

Clear Synchronous Queue Lock

11h

Clear Asynchronous Queue 0 Lock

12h

Clear Asynchronous Queue 1 Lock

14h

Reserved

18h

Clear Receive Queue 1 Lock

20h

Clear Receive Queue 2 Lock

21h

Tristate X Bus (in SAS only)

22h

Drive X Bus

23h

Clear All Queue Locks

3Fh

SUPERNET 3 Command Registers 2

Instruction Name

Code

Mnemonic

Reserved

01h

Reserved

02h

Reserved

04h

Reserved

08h

Abort Current Transmit Activity

10h

Reset Transmit Queues

20h

Set Tag Bit

30h

Reserved

40h

Transmit Command

50h

AM79C850 Datasheet(PDF) 75 Page - Advanced Micro Devices

AM79C850 Datasheet(HTML) 75 Page - Advanced Micro Devices

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