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參數(shù)資料
| 型號： | C515A |
| 廠商： | SIEMENS 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 |
| 文件頁數(shù)： | 29/58頁 |
| 文件大?。?/td> | 634K |
| 代理商： | C515A |
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Semiconductor Group
29
1997-10-01
C515A
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 abbreviation 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 a dedicated baud rate generator (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 |
|---|---|
| C515C | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| C515C-8EM | RW-D Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 48V; Output Voltage (Vdc): 05V; Power: 2W; DIP24 Low Profile Package; Dual Ouputs from a Single Supply; 2:1 Wide Range Voltage Input; 3kVDC Isolation; UL94V-0 Package Material; Continuous Short Circuit Protection; Low profile 7mm Height; Approved for Medical Applications; Efficiency to 85% |
| C515C-8RM | RW-S Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 48V; Output Voltage (Vdc): 05V; Power: 2W; DIP24 Low Profile Miniature Package; 1kVDC Isolation; Feedback Regulated Output; 2:1 Wide Range Voltage Input; Continuous Short Circuit Protection; Less than 7mm Height; SMD Pinning Option; Efficiency to 87% |
| C515C-LM | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| C515C | 8-Bit CMOS Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C515A_9708 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515C | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller |
| C515C_9711 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515C-8E | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515C-8EM | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller |
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