CD2231 Intel Corporation, CD2231 Datasheet - Page 27

• Manufacturer Part Number: CD2231
• Description: CD2231 Intelligent Two-channel Lan And Wan Communications Controller
• Manufacturer: Intel Corporation

4.2.3
Datasheet
Special Character Registers
Special Character Register 1 (SCHR1)
Special Character Register 2 (SCHR2)
Special Character Register 3 (SCHR3)
Special Character Register 4 (SCHR4)
Special Character Ranges
Special Character Range low (SCRl)
Special Character Range high (SCRh)
LNext Character (LNXT)
Receive Frame Address Registers
Receive Frame Address Register 1 (RFAR1)
Receive Frame Address Register 2 (RFAR2)
Receive Frame Address Register 3 (RFAR3)
Receive Frame Address Register 4 (RFAR4)
CRC Polynomial Select Register (CPSR)
Transmit Special Mapped Characters (PPP only)
Transmit Special Mapped Character 1 (TSPMAP1)
Transmit Special Mapped Character 2 (TSPMAP2)
Transmit Special Mapped Character 3 (TSPMAP3)
Transmit Async Control Character Maps (PPP only)
Transmit Async Control Character Map 0 (TXACCM0) 1C
Transmit Async Control Character Map 1 (TXACCM1) 1D
Transmit Async Control Character Map 2 (TXACCM2) 1E
Transmit Async Control Character Map 3 (TXACCM3) 1F
Receive Async Control Character Maps (PPP only)
Receive Async Control Character Map 0 (RXACCM0) 20
Receive Async Control Character Map 1 (RXACCM1) 21
Receive Async Control Character Map 2 (RXACCM2) 22
Receive Async Control Character Map 3 (RXACCM3) 23
Bit Rate and Clock Option Registers
Receive Bit Rate Period Register (RBPR)
0
Intelligent Two-Channel LAN and WAN Communications Controller — CD2231
0
0
Receive Bit Rate Period (Divisor)
0
0
1C
1D
1E
1F
20
21
2D
1C
1D
1E
1F
D4
1B
04
2D
C9
0
1F
1E
1D
1C
23
22
1F
1E
1D
1C
18
07
2E
1F
1E
1D
1C
23
22
21
20
2E
D6
CB
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
0
R/W Async
R/W Async
R/W Async
R/W Async
R/W Async
R/W Async
R/W Async
R/W Sync
R/W Sync
R/W Sync
R/W Sync
R/W
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W PPP
R/W
poly
27