AT80C5112 Datasheet, PDF (35/97 Pages) ATMEL Corporation – 8-bit Microcontroller with A/D Converter

AT8xC5112
Table 29. BDRCON Register
BDRCON - Baud Rate Control Register (9Bh)
7
6
5
4
3
2
1
0
-
-
-
BRR
TBCK
RBCK
SPD
SRC
Bit
Number
7
6
5
4
3
2
1
0
Bit
Mnemonic
-
-
-
BRR
TBCK
RBCK
SPD
SRC
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit
Reserved
The value read from this bit is indeterminate. Do not set this bit
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Baud Rate Run Control bit
Clear to stop the internal Baud Rate Generator.
Set to start the internal Baud Rate Generator.
Transmission Baud rate Generator Selection bit for UART
Clear to select Timer 1 or Timer 2 for the Baud Rate Generator.
Set to select internal Baud Rate Generator.
Reception Baud Rate Generator Selection bit for UART
Clear to select Timer 1 or Timer 2 for the Baud Rate Generator.
Set to select internal Baud Rate Generator.
Baud Rate Speed Control bit for UART
Clear to select the SLOW Baud Rate Generator.
Set to select the FAST Baud Rate Generator.
Baud Rate Source select bit in Mode 0 for UART
Clear to select F_OSC/12 as the Baud Rate Generator (F_OSC/6 in X2 mode).
Set to select the internal Baud Rate Generator for UARTs in mode 0.
Reset value = XXX0 0000b
35
4191B–8051–04/03