H8SXSLASH1663M datasheet(1269/1504 Pages) RENESAS

1269 / 1504 page

Section 28 Power-Down Modes

Rev. 2.00 Sep. 24, 2008 Page 1237 of 1468

REJ09B0412-0200

State of

Operation

Sleep Mode

All-Module-

Clock-Stop

Mode

Software

Standby Mode

Deep

Software

Standby

Mode

Hardware

Standby

Mode

I/O ports

Operating

Retained

Retained*

Stopped*

(undefined)

Hi-Z

Notes: "Stopped (retained)" in the table means that the internal values are retained and internal

operations are suspended.

"Stopped (undefined)" in the table means that the internal values are undefined and the

power supply for internal operations is turned off.

1. SCI enters the reset state, and other peripheral modules retain their states.

2. External interrupt and some internal interrupts (8-bit timer, watchdog timer, and 32K

timer).

3. All peripheral modules enter the reset state.

4. "Functioning" or "Stopped" is selectable through the setting of bits MSTPA9 and

MSTPA8 in MSTPCRA.

5. "Retained" or "undefined" of the contents of RAM is selected by the setting of the bits

RAMCUT2 to RAMCUT0 in DPSBYCR.

6. Retention or high-impedance for the address bus and bus-control signals (

CS0 to CS7,

AS, RD, HWR, and LWR) is selected by the setting of the OPE bit in SBYCR.

7. Some peripheral modules enter a state where the register values are retained.

8. An external interrupt, 32K timer interrupt, or USB suspend/resume interrupt.

9. Start/stop can be selected by setting the OSC32STP bit in TCR32K.

10. External interrupt and voltage monitoring interrupt*

11.

11. Supported only by the H8SX/1668M Group.

H8SX/1663M Datasheet(PDF) 1269 Page - Renesas Technology Corp

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