参数资料
型号: SAB-C515-L24N
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 24 MHz, MICROCONTROLLER, PQCC68
封装: PLASTIC, LCC-68
文件页数: 150/162页
文件大小: 771K
代理商: SAB-C515-L24N
Semiconductor Group
6-45
On-Chip Peripheral Components
C515
Figure 6-23
Baud Rate Generation for the Serial Port
Depending on the programmed operating mode different paths are selected for the baud rate clock
generation. Figure 6-23 shows the dependencies of the serial port 0 baud rate clock generation
from the two control bits and from the mode which is selected in the special function register SCON.
6.3.3.1
Baud Rate in Mode 0
The baud rate in mode 0 is fixed to :
6.3.3.2
Baud Rate in Mode 2
The baud rate in mode 2 depends on the value of bit SMOD in special function register PCON. If
SMOD = 0 (which is the value after reset), the baud rate is 1/64 of the oscillator frequency. If SMOD
= 1, the baud rate is 1/32 of the oscillator frequency.
MCB03206
Rate
f
OSC
(SMOD)
Baud
Clock
PCON.7
÷ 2
(SM0/
SM1)
SCON.7
SCON.6
Only one mode
can be selected
ADCON.7
(BD)
0
1
0
1
Timer
Mode
Note: The switch configuration shows the reset state.
1
0
2
3
Mode
Mode 1
Overflow
÷ 6
/2
÷ 39
Mode 0 baud rate =
oscillator frequency
12
Mode 2 baud rate =
oscillator frequency
64
2 SMOD
x
相关PDF资料
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