7733 datasheet(456/940 Pages) RENESAS

Part #	7733

Description	16-BIT SINGLE-CHIP MICROCOMPUTER

PDF	940 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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456 / 940 page

APPLICATIONS

7733 Group User’s Manual

17–49

17.4.2 Power saving example with wait mode used

In this example, power saving is realized by using the wait mode. While power is saved, the clock function

is realized by using the clock timer (Timer B2).

(1) Specifications

The microcomputer operates in the single-chip mode.

The frequency of the sub clock (f(XCIN)) = 32.768 kHz. An external clock is used as the sub clock.

Clock counting is performed by using the clock timer. (An interrupt request occurs every second.)

When an INT0 interrupt request occurs (Note), the wait mode is terminated.

Note: An interrupt request occurs at every falling edge of the signal input from pin INT0.

In the wait mode, interrupts other than the following interrupts are disabled.

•Timer B2 interrupt

•INT0 interrupt

An external input is used as the main clock.

17.4 Power saving

7733 Datasheet(PDF) 456 Page - Renesas Technology Corp