CD2231 Intel Corporation, CD2231 Datasheet - Page 24

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CD2231

Manufacturer Part Number
CD2231
Description
CD2231 Intelligent Two-channel Lan And Wan Communications Controller
Manufacturer
Intel Corporation
Datasheet
CD2231 — Intelligent Two-Channel LAN and WAN Communications Controller
Name
Description
ATBSTS
A Transmit Buffer Status
BTBSTS
B Transmit Buffer Status
TCBADRL
Transmit Current Buffer Address Lower
TCBADRU
Transmit Current Buffer Address Upper
4.1.8
Timer Registers
Name
Description
TPR
Timer Period Register
RTPR
Receive Timeout Period Register
RTPRl
Receive Timeout Period Register low
RTPRh
Receive Timeout Period Register high
GT1
General Timer 1
GT1l
General Timer 1 low
GT1h
General Timer 1 high
GT2
General Timer 2
TTR
Transmit Timer Register
4.2
Register Definitions
4.2.1
Global Registers
Global Firmware Revision Code Register (GFRCR)
Channel Access Register (CAR)
0
0
24
Addr.
2
INT
MOT
1
Mode
P
5C
5F
P
5D
5E
P
38
3A
P
3A
38
Addr.
2
3
INT
MOT
1
Mode
G
D8
DA
P
26
24
P
26
25
P
27
24
P
28
2A
P
28
2B
P
29
2A
P
2A
29
P
2A
29
82
Firmware Revision Code
EC
0
0
0
3
Size
Access
Page
B
R/W
147
B
R/W
149
W
R
152
W
R
152
Size
Access
Page
B
R/W
152
R/W
W
153
Async
R/W
B
153
Async
R/W
B
153
Async
R/W
W
154
Sync
R/W
B
154
Sync
R/W
B
154
Sync
R/W
B
154
Sync
R/W
B
155
Async
81
B
R/W
EE
B
R/W
0
0
C0
Datasheet

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