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
Receive Interrupt Status Register (RISR)
Receive Interrupt Status Register low (RISRl)
HDLC Mode
0
EOF
Asynchronous Mode
Timeout
SCdet2
Async-HDLC / PPP / MNP4 Mode
0
EOF
SLIP Mode
0
EOF
Receive Interrupt Status Register high (RISRh)
Berr
EOF
Receive FIFO Output Count (RFOC)
0
0
Receive Data Register (RDR)
D7
D6
Receive End of Interrupt Register (REOIR)
Asynchronous and HDLC Modes
TermBuff
DiscExc
Async-HDLC / PPP / SLIP / MNP4 Modes
TermBuff
DiscExc
30
RxAbt
CRC
OE
SCdet1
SCdet0
OE
RxAbt
CRC
OE
0
0
OE
EOB
0
BA/BB
0
RxCt4
RxCt3
D5
D4
D3
SetTm2
SetTm1
NoTrans
SetTm2
SetTm1
NoTrans
8A
88
W
R
8A
89
B
R
Reslnd
0
ClrDct
PE
FE
Break
FE
0
Break
FE
0
Break
8B
88
B
R
0
0
0
33
30
B
R
RxCt2
RxCt1
RxCt0
F8
F8
B
R
D2
D1
D0
87
84
B
W
Gap2
Gap1
Gap0
0
0
0
Datasheet