參數(shù)資料
型號: SAF-C515C-8EMCA
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, MQFP-80
文件頁數(shù): 39/97頁
文件大?。?/td> 1298K
代理商: SAF-C515C-8EMCA
C515C
Data Sheet
40
2003-02
Figure 15
Block Diagram of Baud Rate Generation for the Serial Interface
Table 9 below lists the values/formulas for the baud rate calculation of the serial
interface with its dependencies of the control bits BD and SMOD.
Table 9
Serial Interface - Baud Rate Dependencies
Serial Interface
Operating Modes
Active Control
Bits
Baud Rate Calculation
BD
SMOD
Mode 0 (Shift
Register)
––
fOSC / 6
Mode 1 (8-bit UART)
Mode 3 (9-bit UART)
0
X
Controlled by timer 1 overflow:
(2SMOD
× timer 1 overflow rate) / 32
1
X
Controlled by baud rate generator
(2SMOD
× f
OSC) /
(32
× baud rate generator overflow rate)
Mode 2 (9-bit UART)
0
1
fOSC / 32
fOSC / 16
MCS02733
Rate
f OSC
(SMOD)
Baud
Clock
PCON.7
2
(SM0/
SM1)
SCON.7
SCON.6
Only one mode
can be selected
ADCON0.7
(BD)
0
1
0
1
Baud
Rate
Generator
(SRELH
SRELL)
Timer 1
Mode 2
Mode 0
Note: The switch configuration shows the reset state.
Mode 3
Mode 1
Overflow
6
÷
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