7733 datasheet(529/940 Pages) RENESAS

tên linh kiện	7733

Giải thích chi tiết về linh kiện	16-BIT SINGLE-CHIP MICROCOMPUTER

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EXTERNAL ROM VERSION

7733 Group User’s Manual

20–13

20.7 Timer A

20.7.2 Pulse output port mode

(1) Overview

In the pulse output mode, there are two types of pulse output port: RTP0 controlled by timer A0 and

RTP1 controlled by timer A2.

When an underflow occurs in timer A0 or A2, the contents of the pulse output data register 0 or 1 is

output from the corresponding pulse output pins.

Also, the pulse width can be modulated by timer A as follows: use timer A1 for RTP0 and use timer

A3 for RTP1. In addition, RTP0 can reverse the polarity of the contents of the pulse output data

Table 20.7.1 lists the specifications of the pulse output mode.

Table 20.7.1 Specifications of pulse output port mode

Pulse output port

Control timer

Pulse output pins

Pulse width modulation

Output level reverse function

RTP0

Timer A0

RTP00–RTP03

(Ports P50–P53)

Pulse output data register 0

Possible (Timer A1 is used)

Available

RTP1

Timer A2

RTP10–RTP13

(Ports P54–P57)

Pulse output data register 1

Possible (Timer A3 is used)

Not available

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