参数资料
型号: AT83C5112
厂商: Atmel Corp.
英文描述: 8-bit Microcontroller with A/D Converter
中文描述: 8位微控制器与A / D转换器
文件页数: 30/97页
文件大小: 1229K
代理商: AT83C5112
30
AT8xC5112
4191B
8051
04/03
Figure 10.
Baud Rate Selection
Table 22.
Baud Rate Selection Table for UART
Internal Baud Rate Generator
(BRG)
When the internal Baud Rate Generator is used, the Baud Rates are determined by the
BRG overflow depending on the BRL reload value, the X2 bit in CKON0 register, the
value of SPD bit (Speed Mode) in BDRCON register and the value of the SMOD1 bit in
PCON register (for UART) :
Figure 11.
Internal Baud Rate Generator
TBCK
RBCK
Clock Source for UART Tx
Clock Source
UART Rx
0
0
Timer 1
Timer 1
1
0
INT_BRG
Timer 1
0
1
Timer 1
INT_BRG
1
1
INT_BRG
INT_BRG
/ 16
RBCK
INT_BRG
0
1
TBCK
INT_BRG
TIMER1_BRG
Rx Clock
/ 16
0
1
TIMER1_BRG
Tx Clock
Peripheral clock
BRG
0
1
/6
BRL
/2
0
1
INT_BRG
SPD
BRR
SMOD1
auto reload counter
overflow
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