COM20020-5 Datasheet, PDF (20/58 Pages) SMSC Corporation – Universal Local Area Network Controller with 2K x 8 On-Board RAM

TABLE 1 - READ REGISTER SUMMARY
REGISTER MSB
READ
LSB ADDRESS
STATUS
RI
X
X
POR TEST RECON TMA TA
00
DIAG.
MY-
NEW
STATUS
RECON ^{DUPID RCVACT TOKEN EXCNAK TENTID} NEXTID ^X
01
ADDRESS
AUTO-
PTR
RDDATA _INC
X
X
X
A10
A9
A8
02
HIGH
ADDRESS
PTR
A7
A6
A5
A4
A3
A2
A1
A0
03
LOW
DATA
D7
D6
D5
D4
D3
D2
D1
D0
04
RESERVED X
X
X
X
X
X
X
X
05
CONFIG-
URATION
RESET CCHEN TXEN ET1
BACK- SUB- SUB-
ET2 _{PLANE AD1}
AD0
06
TENTID
TID7 TID6 TID5 TID4 TID3 TID2 TID1 TID0
NODEID
NID7 NID6 NID5 NID4 NID3 NID2 NID1 NID0
07
FOUR
RCV_
SLOW
SETUP
P1MODE
ET3
CKP3 CKP2 CKP1
NAKS
ALL
ARB
NEXT
ID
NXTID7 NXTID6 NXTID5 NXTID4 NXTID3 NXTID2 NXTID1 NXTID0
Note: The SLOWARB bit of the Setup Register must be set for 5Mbps
operation.
20