參數(shù)資料
型號(hào)： SAB-C515-1RM
廠商： INFINEON TECHNOLOGIES AG
元件分類： 8位微控制器
英文描述： 8-Bit CMOS Microcontroller
中文描述： 8位CMOS微控制器
文件頁(yè)數(shù)： 30/55頁(yè)
文件大?。?/td> 268K
代理商： SAB-C515-1RM
C515
Semiconductor Group
30
1997-08-01
Serial Interface (USART)
The serial port is full duplex and can operate in four modes (one synchronous mode, three
asynchronous modes) as illustrated in
table 5
. The possible baudrates can be calculated using the
formulas given in
table 5
.
For clarification some terms regarding the difference between "baud rate clock" and "baud rate"
should be mentioned. In the asynchronous modes the serial interfaces require a clock rate which is
16 times the baud rate for internal synchronization. Therefore, the baud rate generators/timers have
to provide a "baud rate clock" (output signal in
figure 13
to the serial interface which - there divided
by 16 - results in the actual "baud rate". Further, the abbrevation f
OSC
refers to the oscillator
frequency (crystal or external clock operation).
The variable baud rates for modes 1 and 3 of the serial interface can be derived from either timer 1
or from the system clock (see
figure 13
).
Table 5
USART Operating Modes
Mode
SCON
Description
SM0
SM1
0
0
0
Shift register mode
Serial data enters and exits through R
×
D/ T
×
D outputs the shift
clock; 8-bit are transmitted/received (LSB first); fixed baud rate
1
0
1
8-bit UART, variable baud rate
10 bits are transmitted (through T
×
D) or received (at R
×
D)
9-bit UART, fixed baud rate
11 bits are transmitted (through T
×
D) or received (at R
×
D)
9-bit UART, variable baud rate
Like mode 2
2
1
0
3
1
1
相關(guān)PDF資料
PDF描述
SAB-C515-L24M 8-Bit CMOS Microcontroller
SAB-C515-LM 8-Bit CMOS Microcontroller
SAF-C515-1R24M 8-Bit CMOS Microcontroller
SAF-C515-1RM 8-Bit CMOS Microcontroller
SAF-C515-L24M 8-Bit CMOS Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAB-C515A-4R 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C515A-4R24M 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C515A-4RM 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C515A-L24M 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAB-C515A-LM 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
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