7477 datasheet(174/354 Pages) RENESAS

Part #	7477

Description	8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES

PDF	354 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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174 / 354 page

1-157

7470/7471/7477/7478 GROUP USER’S MANUAL

HARDWARE

1.16 Oscillation circuit

(2) Oscillation operation in the stop mode

After the stop mode is provided by execution the STP instruction, all oscillation stops. After that,

when the previous mode is restored from the stop mode by inputting the reset signal or generating

a restoration interrupt request, the oscillation starts.

For the details of the stop mode, refer to “1.17.1 Stop mode.”

(3) Oscillation operation in the wait mode

When the wait mode is provided by execution the WIT instruction, the internal clock

φ supplied to the

CPU stops.

When the previous mode is restored from the wait mode by inputting the reset signal or generating

an interrupt request, the supply of internal clock

φ to the CPU starts.

For the details of the wait mode, refer to “1.17.2 Wait mode.”

(4) State transitions of internal clock

Refer to “1.18 State transitions.”

7477 Datasheet(PDF) 174 Page - Renesas Technology Corp