SH7721 datasheet(560/1524 Pages) RENESAS

Part #	SH7721

Description	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

PDF	1524 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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560 / 1524 page

Section 13

Power-Down Modes

Rev. 3.00

Jan. 18, 2008

Page 498 of 1458

REJ09B0033-0300

CKIO

STATUS

reset*1

0 to 10 Bcyc

standby*2

RESETP

Undefined

Notes: 1. reset : HH (STATUS1 = High, STATUS0 = High)

2. standby : LH(STATUS1 = Low, STATUS0 = High)

3. normal : LL (STATUS1 = Low, STATUS0 = Low)

4. Bcyc : Bus clock cycle

standby

normal*3

WDT opeeration

Figure 13.11

Hardware Standby Mode Timing

(CA is pulled low while WDT operates after the standby mode is canceled)

STATUS

Power supply

other than Vcc_RTC

and VccQ_RTC

RESETP

RTC protection

Normal*3

Standby*2

Undefined

Reset*1

Normal*3

Specification: Checking the standby state of the STATUS pin

0 to 10 Bcyc*4

0 to 30 Bcyc

Notes: *1 Reset: HH (STATUS1 = High, STATUS0 = High)

*2 Standby: LH (STATUS1 = Low, STATUS0 = High)

*3 Normal operation: LL (STATUS1 = Low, STATUS0 = Low)

*4 Bcyc: Bus clock cycle

Figure 13.12

Timing When Power of Pins other than V

CC_RTC and VCCQ_RTC is Off

SH7721 Datasheet(PDF) 560 Page - Renesas Technology Corp

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