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參數(shù)資料
| 型號： | MB89951PFM |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 0.65 MM PITCH, QFP-64 |
| 文件頁數(shù)： | 63/110頁 |
| 文件大?。?/td> | 619K |
| 代理商： | MB89951PFM |
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HARDWARE CONFIGURATION
2– 41
(b) Serial rate control register (SRC)
This register is used to control the data transfer speed (baud rate) of the
UART.
Note: The synchronous transfer clock rate is as follows irrespective of the
value of the CR bit:
Note that the dedicated baud rate generator may select the clock
rate according to the CR value.
[Bits 4 and 3] CS1 and CS0: Clock select
Bits 4 and 3 are used to select the clock input of the UART port. If the
external or internal clock is selected as clock input, the baud rate is a 1/16
or 1/64 clock frequency according to the value of the CR bit (initial value:
11B). For details, see (4) of Description of operation.
[Bits 2 to 0] RC2 to RC0:
Bits 2 to 0 are needed only when generating a serial clock pulse with the
dedicated baud rate generator. The baud rate can be selected from eight
kinds by these bits (initial value: 000
B). For the baud rate setting, see (4)
of Description of Operation.
Peripherals
SMC1
Address: 0020H
SRC
Address: 0021H
Address: 0021H
(Initial value)
--011000B
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
—
CR
CS1
CS0
RC2
RC1
RC0
(R/W)
SSD
Address: 0022H
SIDR
Address: 0023H
SODR
Address: 0023H
[Bit 5] CR: Clock rate
Bit 5 is used to select the asynchronous transfer clock rate. However, when
the CS1 and CS0 bits are 11
B, the 1/8 clock rate is selected irrespective
of the value of the CR bit.
SMC2
Address: 0024H
0
1
1/16 of clock input (Initial value)
1/64 of clock input
Clock source
PWM timer,
dedicated baud rate generator .......... 1/2
External clock,
dedicated baud rate generator .......... 1/1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MB89953 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89953PFM | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB8995X | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89960 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89965 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
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