7721 datasheet(195/577 Pages) RENESAS

Il numero della parte	7721

Spiegazioni elettronici	16-BIT SINGLE-CHIP MICROCOMPUTER

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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REAL-TIME OUTPUT

7721 Group User’s Manual

10–2

10.1 Overview

The real-time output has the function of changing the output level of several pins simultaneously at every

period of the timer. Figure 10.1.1 shows the block diagram of real-time output per bit. Real-time output has

two operating modes described below.

(1)

Pulse mode 0

The 8-bit pulse output pins serve for two independent 4-bit outputs. Figure 10.1.2 shows the configuration

of real-time output in the pulse mode 0.

(2)

Pulse mode 1

The 8-bit pulse output pins serve for a 2-bit and a 6-bit outputs. Figure 10.1.3 shows the configuration

of real-time output in the pulse mode 1.

Fig. 10.1.1 Block diagram of real-time output per bit

Pulse output data register j

Waveform output select bit j

Bit i of port P6 direction register

Timer Aj

underflow signal

P6i/RTP0k, P6i/RTP1k

• i = 0–7

• j = 0, 1

• k = 0–3

Flip-flop

Port P6i latch

7721 Scheda tecnica(PDF) 195 Page - Renesas Technology Corp