CD2231

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


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Intelligent Two-Channel LAN and WAN Communications Controller — CD2231
Name
Description
COR6
Channel Option Register 6
COR7
Channel Option Register 7
SCHR1
Special Character Register 1
SCHR2
Special Character Register 2
SCHR3
Special Character Register 3
SCHR4
Special Character Register 4
SCRl
Special Character Range low
SCRh
Special Character Range high
LNXT
LNext Character
RFAR1
Receive Frame Address Register 1
RFAR2
Receive Frame Address Register 2
RFAR3
Receive Frame Address Register 3
RFAR4
Receive Frame Address Register 4
CPSR
CRC Polynomial Select Register
TSPMAP1
Transmit Special Mapped Character 1
TSPMAP2
Transmit Special Mapped Character 2
TSPMAP3
Transmit Special Mapped Character 3
TXACCM0
Transmit Async Control Character Map 0
TXACCM1
Transmit Async Control Character Map 1
TXACCM2
Transmit Async Control Character Map 2
TXACCM3
Transmit Async Control Character Map 3
RXACCM0
Receive Async Control Character Map 0
RXACCM1
Receive Async Control Character Map 1
RXACCM2
Receive Async Control Character Map 2
RXACCM3
Receive Async Control Character Map 3
4.1.3
Bit Rate and Clock Option Registers
Name
Description
RBPR
Receive Baud Rate Period Register
RCOR
Receive Clock Option Register
TBPR
Transmit Baud Rate Period Register
TCOR
Transmit Clock Option Register
Datasheet
Addr.
2
3
INT
MOT
Size
1
Mode
P
1B
18
B
P
04
07
B
P
1C
1F
B
P
1D
1E
B
P
1E
1D
B
P
1F
1C
B
P
20
23
B
P
21
22
B
P
2D
2E
B
P
1C
1F
B
P
1D
1E
B
P
1E
1D
B
P
1F
1C
B
P
D4
D6
B
P
1B
18
B
P
04
07
B
P
2D
2E
B
P
1C
1F
B
P
1D
1E
B
P
1E
1D
B
P
1F
1C
B
P
20
23
B
P
21
22
B
P
22
21
B
P
23
20
B
Addr.
2
3
INT
MOT
Size
1
Mode
P
C9
CB
P
CA
C8
P
C1
C3
P
C2
C0
Access
Page
R/W
100
R/W
101
R/W Async
102
R/W Async
102
R/W Async
103
R/W Async
103
R/W Async
104
R/W Async
104
R/W Async
104
R/W Sync
105
R/W Sync
105
R/W Sync
105
R/W Sync
105
R/W Sync
106
R/W
106
R/W
106
R/W
107
R/W
107
R/W
107
R/W
108
R/W
108
R/W
108
R/W
109
R/W
109
R/W
109
Access
Page
B
R/W
110
B
R/W
110
B
R/W
111
B
R/W
112
21