CD2401 Intel, CD2401 Datasheet - Page 23

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

4.1.4
4.1.5
4.1.5.1
Datasheet
CCR
STCR
CSR
MSVR-RTS
MSVR-DTR
LIVR
IER
LICR
STK
RPILR
RIR
RISR
RISRl
RISRh
RFOC
RDR
REOIR
Name
Name
Name
Local Interrupt Vector Register
Local Interrupting Channel Register
Interrupt Enable Register
Stack Register
Receive Priority Interrupt Level Register
Receive Interrupt Register
Receive Interrupt Status Register
Receive Interrupt Status Register low
Receive Interrupt Status Register high
Receive FIFO Output Count
Receive Data Register
Receive End Of Interrupt Register
Channel Command Register
Special Transmit Command Register
Channel Status Register
Modem Signal Value Registers
Channel Command and Status Registers
Interrupt Registers
Receive Interrupt Registers
Description
Description
Description
Multi-Protocol Communications Controller — CD2401
Mode
Mode
Mode
Addr.
Addr.
Addr.
G
P
P
P
G
G
G
G
G
G
G
G
P
P
P
P
P
1
1
1
INT
INT
INT
0A
E0
DC
DD
12
25
EF
E3
8A
8A
8B
F8
87
10
11
19
33
2
2
2
MOT
MOT
MOT
E2
DE
DF
09
11
26
ED
13
12
1A
E1
88
89
88
F8
84
30
3
3
3
Size
Size
Size
B
B
B
B
W
B
B
B
B
B
B
B
B
B
B
B
B
Access
Access
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
W
R
R
R
R
R
R
R
Page
Page
Page
124
125
126
126
116
119
119
123
123
127
128
129
129
132
133
133
134
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