H8SXSLASH1663R datasheet(1270/1504 Pages) RENESAS

1270 / 1504 page

Section 28 Power-Down Modes

Rev. 2.00 Sep. 24, 2008 Page 1238 of 1468

REJ09B0412-0200

Main clock operation

(CK32K = 0)

Subclock operation

(CK32K = 1)

Notes: 1. NMI,

IRQ0 to IRQ11, 8-bit timer interrupt, watchdog timer interrupt, 32K timer interrupt, and voltage monitoring interrupt*6.

Note that the 8-bit timer interrupt is valid when the MSTPCRA9 or MSTPCRA8 bit is cleared to 0.

2. NMI,

IRQ0 to IRQ11, 32K timer interrupt, USB suspend/resume interrupt, and voltage monitoring interrupt*6.

Note that IRQ, 32K timer, or USB interrupts is valid only when the corresponding bit in SSIER is set to 1.

3. The SLPIE bit is cleared to 0.

4. NMI,

IRQ0-A to IRQ3-A, 32K timer interrupts, USB suspend/resume interrupts, and voltage monitoring interrupt*6.

Note that IRQ, 32K timer, USB, suspend/resume, and voltage monitoring*6 interrupts are valid only when the

corresponding bit in DPSIER is set to 1.

5. If a conflict between a transition to deep software standby mode and generation of software standby mode

clearing source occurs, a mode transition may be made from software standby mode to program execution state

through execution of interrupt exception handling. In this case, a transition to deep software standby mode is not

made. For details, refer to section 28.12, Usage Notes.

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

Note:

From any state, a transition to hardware standby mode occurs when

STBY is driven low.

From any state except hardware standby mode, a transition to the reset state occurs when

RES is driven low.

Reset state

Program execution state

Hardware

standby mode

Internal reset state

Software

standby mode

SSBY = 0

SSBY = 0, ACSE = 1

MSTPCR = H'F[C-F]FFFFFF

STBY pin = High

RES pin = Low

STBY pin = Low

RES pin = High

SLEEP instruction

SLEEP instruction*3

SLEEP instruction

Interrupt

(SSBY =1)

All interrupts

SLEEP instruction

SLEEP instr

uction

All interrupts

CK32K = 0

CK32K = 1

Transition after exception handling

[Legend]

Deep software

standby mode

Sleep mode

All-module-clock-

stop mode

Program execution state

Program halted state

Software

standby mode

SSBY = 0

SSBY = 0, ACSE = 1

MSTPCR = H'F[C-F]FFFFFF

Sleep mode

All-module-clock-

stop mode

Interrupt

WAKE32K = 1

and Interrupt

WAKE32K = 0

and Interrupt

(DPSBY = 1

and no interrupt

is generated*5)

Deep software

standby mode

(DPSBY = 1

and no interrupt

is generated*5)

(DPSBY = 0

and no interrupt

is generated)

(DPSBY = 0

and no interrupt

is generated)

Interrupt

Figure 28.1 Mode Transitions

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