7 timing of the changes on the status pins, 1 reset, 2 releasing sleep mode – Renesas SH7781 User Manual

Page 827: 8 ddr-sdram power supply backup

17. Power-Down Mode

Rev.1.00 Jan. 10, 2008 Page 797 of 1658

REJ09B0261-0100

17.7

Timing of the Changes on the STATUS Pins

17.7.1

Reset

For details, see section 16.5, Status Pin Change Timing during Reset.

17.7.2

Releasing Sleep Mode

(1)

When Sleep Mode Is Released by an Interrupt

Figure 17.1 shows the timing of the changes in the STATUS pin.

Interrupt request

LL (Normal)

HL (Sleep)

LL (Normal)

CLKOUT

IRQOUT
output

STATUS[1:0]
output

Figure 17.1 Status Pins Output when an Interrupt Occurs in Sleep Mode

17.8

DDR-SDRAM Power Supply Backup

For details, see section 12.5.10, DDR2-SDRAM Power Supply Backup Function.