CD2231

Manufacturer Part NumberCD2231
DescriptionCD2231 Intelligent Two-channel Lan And Wan Communications Controller
ManufacturerIntel Corporation
CD2231 datasheet
 


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CD2231 — Intelligent Two-Channel LAN and WAN Communications Controller
4.1.4
Channel Command and Status Registers
Name
Description
CCR
Channel Command Register
STCR
Special Transmit Command Register
CSR
Channel Status Register
MSVR-RTS
Modem Signal Value Registers
MSVR-DTR
4.1.4.1
Interrupt Registers
Name
Description
LIVR
Local Interrupt Vector Register
IER
Interrupt Enable Register
LICR
Local Interrupting Channel Register
STK
Stack Register
4.1.5
Receive Interrupt Registers
Name
Description
RPILR
Receive Priority Interrupt Level Register
RIR
Receive Interrupt Register
RISR
Receive Interrupt Status Register
RISRl
Receive Interrupt Status Register low
RISRh
Receive Interrupt Status Register high
RFOC
Receive FIFO Output Count
RDR
Receive Data Register
REOIR
Receive End of Interrupt Register
4.1.6
Transmit Interrupt Registers
Name
Description
TPILR
Transmit Priority Interrupt Level Register
TIR
Transmit Interrupt Register
TISR
Transmit Interrupt Status Register
TFTC
Transmit FIFO Transfer Count
TDR
Transmit Data Register
TEOIR
Transmit End of Interrupt Register
22
Addr.
2
3
INT
MOT
Size
1
Mode
P
10
13
B
P
11
12
B
P
19
1A
B
P
DC
DE
B
P
DD
DF
B
Addr.
2
3
INT
MOT
Size
1
Mode
P
0A
09
B
P
12
11
B
P
25
26
B
G
E0
E2
B
Addr.
2
3
INT
MOT
Size
1
Mode
G
E3
E1
B
G
EF
ED
B
G
8A
88
W
G
8A
89
B
G
8B
88
B
G
33
30
B
G
F8
F8
B
G
87
84
B
Addr.
2
3
INT
MOT
Size
1
Mode
G
E2
E0
B
G
EE
EC
B
G
89
8A
B
G
83
80
B
G
F8
F8
B
G
86
85
B
Access
Page
R/W
112
R/W
115
R
117
R/W
121
R/W
121
Access
Page
R/W
122
R/W
123
R/W
124
R
125
Access
Page
R/W
125
R
126
R
127
R
127
R
130
R
131
R
131
W
131
Access
Page
R/W
133
R
134
R
135
R
135
W
136
W
136
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