參數(shù)資料
型號: M37640E8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER
中文描述: 單芯片8位CMOS單片機
文件頁數(shù): 43/172頁
文件大?。?/td> 1193K
代理商: M37640E8
7600 Series
Mitsubishi Microcomputer
M37640E8-XXXF Preliminary Specification
Input and Output Ports
7/9/98
2-31
corresponds to CNTR0. See section 2.8.1 on page 2-43 for more information on configuring
interrupts. Pin 4
4
acts as Timer Y input pin for pulse period measurement mode, pulse H-L
measurement mode, and event counter mode or as Timer Y output pin for pulse output mode. Pin
4
3
can also be used as an external interrupt (CNTR1) when Timer Y in not in output mode. The
polarity is selected in the Timer Y mode register. The external interrupt function is enabled by
setting the bit to “1” in the interrupt control register that corresponds to CNTR1. See section 2.8.1
on page 2-43 for more information on configuring interrupts.
Figure 2-30. Port P4
3
and P4
4
Block Diagram
Port 5
Port 5 is an 8-bit general purpose I/O port that can be configured to access special second functions.
The port can be set up in any configuration in all three processor modes.
Port 5
0
This pin is multiplexed with the XC
in
clock input. When the XC
in
clock is activated, the pin’s I/O
is disabled.
Figure 2-31. Port P5
0
Block Diagram
Direction Register
Data Bus
Port Latch
CNTR0, 1 Input
Timer X, Y Output
Timer Counter Input Enable
Pulse Output Mode Enable
Direction Register
Data Bus
Port Latch
CPMA4
CPMA4
CPMA4
XC
in
Input
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