CD2231 Intel Corporation, CD2231 Datasheet - Page 29

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CD2231

Manufacturer Part Number
CD2231
Description
CD2231 Intelligent Two-channel Lan And Wan Communications Controller
Manufacturer
Intel Corporation
Datasheet
4.2.5
4.2.5.1
Datasheet
Asynchronous Mode
Async-HDLC/PPP Mode
SLIP/MNP4 Mode
Modem Signal Value Registers (MSVR)
Modem Signal Value Register (MSVR-RTS)
Modem Signal Value Register (MSVR-DTR)
Interrupt Registers
Local Interrupt Vector Register (LIVR)
Interrupt Enable Register (IER)
Local Interrupting Channel Register (LICR)
Interrupt Stack Register (STK)
Receive Interrupt Registers
Receive Priority Interrupt Level Register (RPILR)
Receive Interrupt Register (RIR)
CLvl [1]
RxEn
RxEn
RxEn
Mdm
Ren
DS
X
X
Intelligent Two-Channel LAN and WAN Communications Controller — CD2231
MLvl [1]
RxFloff
RxFloff
Ract
CD
X
X
0
0
TLvl [1]
RxFlon
RFram
RFram
RET
Reoi
CTS
X
X
DTRop
Rldle
Rldle
X
0
X
0
0
0
Rvct [1]
TxEn
TxEn
TxEn
RxD
X
X
0
0
Rvct [0]
TLvl [0]
TxFloff
DC
DD
0A
12
TIMER
25
E0
E3
EF
TxFloff
C0
X
0
0
DE
DF
ED
09
11
26
E2
E1
MLvl [0]
TxFlon
TxMpty
TFram
TFram
B
B
B
DTR
B
B
B
B
B
IT1
X
0
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
R
CLvl [0]
Rcn [0]
TIdle
TIdle
TxD
RTS
IT0
X
0
29

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