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参数资料
| 型号： | M37271EF-XXXSP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52 |
| 封装： | 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-52 |
| 文件页数： | 14/98页 |
| 文件大小： | 1411K |
| 代理商： | M37271EF-XXXSP |
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MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
20
SERIAL I/O
The M37271MF-XXXSP has a built-in serial I/O which can either trans-
mit or receive 8-bit data in serial in the clock synchronous mode.
The serial I/O block diagram is shown in Figure 12. The synchroniz-
ing clock I/O pin (SCLK), and data output pin (SOUT) also function as
port P4, data input pin (SIN) also functions as port P1.
Bit 2 of the serial I/O mode register (address 021316) selects whether
the synchronizing clock is supplied internally or externally (from the
P46/SCLK pin). When an internal clock is selected, bits 1 and 0 select
whether f(XIN) is divided by 8, 16, 32, or 64. To use P45/SOUT and
P46/SCLK pins for serial I/O, set the corresponding bits of the port P4
direction register (address 00C916) to “0.” To use P17/SIN pin for
serial I/O, set the corresponding bit of the port P1 direction register
(address 00C316) to “0.”
Fig. 12. Serial I/O block diagram
The operation of the serial I/O function is described below. The func-
tion of the serial I/O differs depending on the clock source; external
clock or internal clock.
8
Serial I/O shift register (8)
Data bus
Serial I/O
interrupt request
Selection gate: Connect to
black colored
side at reset.
Synchronization
circuit
Frequency divider
1/8
1/4
1/16
SM1
SM0
Serial I/O counter (8)
SM5 : LSB
MSB
S
SM2
1/2
XIN
P17/SIN
P45/SOUT
P46/SCLK
1/2
(Address 021416)
XCIN
1/2
CM7
1/2
Note : When the data is set in the serial I/O register (address 0214 16), the register functions as the serial I/O shift register.
(Note)
CM : CPU mode register
SM : Serial I/O mode register
相关PDF资料 |
PDF描述 |
|---|---|
| M37477M4-XXXFP | 8-BIT, MROM, MICROCONTROLLER, PDSO32 |
| M37478E8-XXXSP | 8-BIT, OTPROM, MICROCONTROLLER, PDIP42 |
| M37478M4-XXXFP | 8-BIT, MROM, MICROCONTROLLER, PQFP56 |
| M37477E8-XXXSP | 8-BIT, OTPROM, MICROCONTROLLER, PDIP32 |
| M37477E8-XXXFP | 8-BIT, OTPROM, MICROCONTROLLER, PDSO32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37271MF | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37271MF-213SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37271MF-219SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37271MF-220SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37271MF-231SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
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