CD2401 Intel, CD2401 Datasheet - Page 25

• Manufacturer Part Number: CD2401
• Description: Multi-protocol Communications Controller
• Manufacturer: Intel

4.1.6.1
4.1.6.2
Datasheet
ARBADRL
ARBADRU
BRBADRL
BRBADRU
ARBCNT
BRBCNT
ARBSTS
BRBSTS
RCBADRL
RCBADRU
ATBADRL
ATBADRU
BTBADRL
BTBADRU
ATBCNT
BTBCNT
ATBSTS
BTBSTS
TCBADRL
TCBADRU
Name
Name
A Transmit Buffer Address Lower
A Transmit Buffer Address Upper
B Transmit Buffer Address Lower
B Transmit Buffer Address Upper
A Transmit Buffer Byte Count
B Transmit Buffer Byte Count
A Transmit Buffer Status
B Transmit Buffer Status
Transmit Current Buffer Address Lower
Transmit Current Buffer Address Upper
A Receive Buffer Address Lower
A Receive Buffer Address Upper
B Receive Buffer Address Lower
B Receive Buffer Address Upper
A Receive Buffer Byte Count
B Receive Buffer Byte Count
A Receive Buffer Status
B Receive Buffer Status
Receive Current Buffer Address Lower
Receive Current Buffer Address Upper
DMA Receive Registers
DMA Transmit Registers
Description
Description
Multi-Protocol Communications Controller — CD2401
Mode
Mode
Addr.
Addr.
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
1
1
INT
INT
4C
4D
3C
5C
5D
40
42
44
46
48
4A
3E
50
52
54
56
58
5A
38
3A
2
2
MOT
MOT
3C
4A
4F
4E
3E
52
50
56
54
5A
58
5F
5E
3A
38
42
40
46
44
48
3
3
Size
Size
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
B
B
B
B
Access
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
Page
Page
148
148
149
149
150
150
150
151
152
152
143
144
144
145
145
146
146
146
147
147
25