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参数资料
| 型号： | M37534E8FP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO36 |
| 封装： | 0.450 INCH, PLASTIC, SSOP-36 |
| 文件页数： | 4/53页 |
| 文件大小： | 680K |
| 代理商： | M37534E8FP |
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7534 Group
MITSUBISHI MICROCOMPUTERS
12
I/O Ports
[Direction registers] PiD
The I/O ports have direction registers which determine the input/out-
put direction of each pin. Each bit in a direction register corresponds
to one pin, and each pin can be set to be input or output.
When “1” is set to the bit corresponding to a pin, this pin becomes an
output port. When “0” is set to the bit, the pin becomes an input port.
When data is read from a pin set to output, not the value of the pin
itself but the value of port latch is read. Pins set to input are floating,
and permit reading pin values.
If a pin set to input is written to, only the port latch is written to and the
pin remains floating.
[Pull-up control] PULL
By setting the pull-up control register (address 001616), ports P0 and
P3 can exert pull-up control by program. However, pins set to output
are disconnected from this control and cannot exert pull-up control.
[Port P1P3 control] P1P3C
By setting the port P1P3 control register (address 001716), a CMOS
input level or a TTL input level can be selected for ports P10, P12,
P13, P36 and P37 by program.
Then, as for the 36-pin version, set “1” to each bit 6 of the port P3
direction register and port P3 register.
As for the 32-pin version, set “1” to respective bits 5, 6, 7 of the port
P3 direction register and port P3 register.
Fig. 13 Structure of port P1P3 control register
Fig. 12 Structure of pull-up control register
Pull-up control register
(PULL: address 0016 16)
P00 pull-up control bit
P01 pull-up control bit
P02, P03 pull-up control bit
P04 – P07 pull-up control bit
P30 – P33 pull-up control bit
P34 pull-up control bit
P35, P36 pull-up control bit
P37 pull-up control bit
Note : Pins set to output ports are disconnected from pull-up control.
b7
b0
0: Pull-up off
1: Pull-up on
Initial value: FF16
Port P1P3 control register
(P1P3C: address 0017 16)
b7
b0
P37/INT0 input level selection bit
0 : CMOS level
1 : TTL level
P36/INT1 input level selection bit
0 : CMOS level
1 : TTL leve
P10,P12,P13 input level selection bit
0 : CMOS level
1 : TTL level
Not used
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37534E8SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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