lan83c175 Standard Microsystems Corp., lan83c175 Datasheet - Page 37

• Manufacturer Part Number: lan83c175
• Description: Ethernet Cardbus Integrated Controller With Modem Support Corporation
• Manufacturer: Standard Microsystems Corp.

Register Map/Control Register Decode
The following table shows the address mapping
Notes:
1
2
3
4
Used during initialization only (illegal to access when not idle).
Legal to access during transmit underrun only.
Legal to access only when frame is discarded after header copy and INTSTAT.RSV is 1.
Legal to access only in test mode.
00
04
08
0C
10
14
18
1C
20
24
28
2C
30
34
38
3C
COMMAND
INTSTAT
INTMASK
GENCTL
NVCTL
EECTL
PBLCNT
Reserved
CRCCNT
ALICNT
MPCNT
RXFIFO
MMCTL
MMDATA
MIICFG
IPG
1
1
4
4
Table 2 - Ethernet Function Control Register Map
40
44
48
4C
50
54
58
5C
60
64
68
6C
70
74
78
7C
LAN0
LAN1
LAN2
ID/CHK
MC0
MC1
MC2
MC3
RXCON
RXSTAT
RXCNT
RXTEST
TXCON
TXSTAT
TDPAR
TXTEST
1
1
1
1
1
1
1
4
1
4
1
1
2
4
4
4
37
80
84
88
8C
90
94
98
9C
A0
A4
A8
AC
B0
B4
B8
BC
of the LAN83C175 control registers.
registers are dword accessible only.
PRFDAR
PRCDAR
PRHDAR
PRFLAR
PRDLGTH
PRFCNT
PRLCAR
PRLPAR
PREFAR
PRSTAT
PRBUF
RDNCAR
PRCPTHR
PREEMPR
4
4
3
4
4
4
4
1
1
4
4
4
1
1
C0
C4
C8
CC
D0
D4
D8
DC
E0
E4
E8
EC
F0
F4
F8
FC
PTFDAR
PTCDAR
PTHDAR
PTFLAR
PTDLGTH
PTFCNT
PTLCAR
ETXTHR
PTETXC
PTSTAT
PTBUF
PTFDAR2
FEVTR
FEVTRMSKR
FPRSTSTR
FFRCEVTR
4
4
4
1
4
4
1
4
1
4
4
4
All