CD2481 Datasheet, PDF (143/222 Pages) Intel Corporation – Programmable Four-Channel Communications Controller

Programmable Four-Channel Communications Controller — CD2481
9.2.15.3 Transmit Async Control Character Map 2 (TXACCM2)
Register Name: TXACCM2
Register Description: Transmit Async Control Character Map 2
Default Value: x’00
Access: Byte Read/Write
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Char. 17
Char. 16
Char. 15
Char. 14
Char. 13
Intel Hex Address: x’1E
Motorola Hex Address: x’1D
Bit 2
Char. 12
Bit 1
Char. 11
Bit 0
Char. 10
9.2.15.4 Transmit Async Control Character Map 3 (TXACCM3)
Register Name: TXACCM3
Register Description: Transmit Async Control Character Map 3
Default Value: x’00
Access: Byte Read/Write
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Char. 1F
Char. 1E
Char. 1D
Char. 1C
Char. 1B
Intel Hex Address: x’1F
Motorola Hex Address: x’1C
Bit 2
Char. 1A
Bit 1
Char. 19
Bit 0
Char. 18
9.2.16
9.2.16.1
The TXACCM registers define transmitted characters in the range 00–1F as mapped (Control bit
set) or not mapped (Control bit clear) as follows:
TXACCM0 bits 0–7 control characters 00–07, respectively.
TXACCM1 bits 0–7 control characters 08–0F, respectively.
TXACCM2 bits 0–7 control characters 10–17, respectively.
TXACCM3 bits 0–7 control characters 18–1F, respectively.
Receive Async Control Character Maps –
Async-HDLC/PPP Mode Only
Receive Async Control Character Map 0 (RXACCM0)
Register Name: RXACCM0
Register Description: Receive Async Control Character Map 0
Default Value: x’00
Access: Byte Read/Write
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Char. 07
Char. 06
Char. 05
Char. 04
Char. 03
Intel Hex Address: x’20
Motorola Hex Address: x’23
Bit 2
Char. 02
Bit 1
Char. 01
Bit 0
Char. 00
Datasheet
143