MU9C8328A Ethernet Interface
FUNCTIONAL DESCRIPTION Continued
STATUS REGISTER (0001)
Bit Mnemonic
Description
15–8
Reserved.
7
6
5
4
3
2
1
0
COL
1 = Collision detected.
LOC
1 = Loss of carrier detected.
BUSY
MATCH
FULL
DAM
1 = Network port is busy using the LANCAM.
1 = A match was found.
1 = The LANCAM is full.
1 = A Destination Address match was found.
1 = A Source Address match was found.
1 = The frame was rejected.
SAM
REJECT
LEARN OP-CODE REGISTER (0010)
Bit
Mnemonic
Description
15–0 ALOC
Contains the Op-Code to be used for an auto-learn, if enabled. Default is 0334H
(MOV NF, CR, V), but can be overwritten.
UPDATE OP-CODE REGISTER (1000)
Description
Bit
Mnemonic
15-0 UOC
Contains the Op-Code to be used for updating the time stamp on a SA match
Default is 0300H (NOP). To update time stamp write 0328H (MOV HM, CR) to this register.
PURGE OP-CODE REGISTER (1001)
Description
Bit
Mnemonic
15-0 POC
Contains the Op-Code to be used for the purge routine. Default is 043DH (VBC ALM,E).
TIME STAMP REGISTER (1010)
Bit
Mnemonic
Description
15-8 NEW_TS
The value used for time stamp updates.
The value used to purge old entries.
7-0
OLD_TS
Table 2: Register Descriptions Continued
Rev. 0.8 Draft
8
MUSIC [ MUSIC SEMICONDUCTORS ]
