
Programmable Four-Channel Communications Controller
—
CD2481
Datasheet
143
9.2.15.3
Transmit Async Control Character Map 2 (TXACCM2)
9.2.15.4
Transmit Async Control Character Map 3 (TXACCM3)
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.
9.2.16
Receive Async Control Character Maps
–
Async-HDLC/PPP Mode Only
9.2.16.1
Receive Async Control Character Map 0 (RXACCM0)
Register Name: TXACCM2
Register Description: Transmit Async Control Character Map 2
Default Value: x
’
00
Access: Byte Read/Write
Intel Hex Address: x
’
1E
Motorola Hex Address: x
’
1D
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Char. 17
Char. 16
Char. 15
Char. 14
Char. 13
Char. 12
Char. 11
Char. 10
Register Name: TXACCM3
Register Description: Transmit Async Control Character Map 3
Default Value: x
’
00
Access: Byte Read/Write
Intel Hex Address: x
’
1F
Motorola Hex Address: x
’
1C
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Char. 1F
Char. 1E
Char. 1D
Char. 1C
Char. 1B
Char. 1A
Char. 19
Char. 18
Register Name: RXACCM0
Register Description: Receive Async Control Character Map 0
Default Value: x
’
00
Access: Byte Read/Write
Intel Hex Address: x
’
20
Motorola Hex Address: x
’
23
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Char. 07
Char. 06
Char. 05
Char. 04
Char. 03
Char. 02
Char. 01
Char. 00