SH7014 datasheet(83/754 Pages) RENESAS

номер детали	SH7014

подробное описание детали	32-Bit RISC Microcomputer

PDF	754 Pages

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производитель	RENESAS [Renesas Technology Corp]

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83 / 754 page

2. CPU

Rev.5.00 Sep. 27, 2007 Page 49 of 716

REJ09B0398-0500

To return from standby mode, use a power-on reset or an NMI interrupt. For resets, the CPU

returns to ordinary program execution state through the exception processing state when placed in

a reset state for the duration of the oscillator stabilization time. For NMI interrupts, the CPU

returns to ordinary program execution state through the exception processing state after the

oscillator stabilization time has elapsed. In this mode, power consumption drops markedly, since

the oscillator stops (table 2.18).

Table 2.18

Power-Down State

State

Mode

Transition

Conditions Clock CPU

On-Chip

Peripheral

Modules

CPU

Registers

On-Chip

Cache or

On-Chip

RAM

I/O

Port

Pins

Canceling

Sleep

Execute

SLEEP

instruction

with SBY bit

cleared to 0

in SBYCR

Run

Halt

Run

Held

• Interrupt

• DMA address

error

• Power-on reset

Stand-

Execute

SLEEP

instruction

with SBY bit

set to 1 in

SBYCR

Halt

Halt and

initialize*

Held

Held or

Hi-Z

(select-

able)

• NMI interrupt

• Power-on reset

Note:

Differs depending on the peripheral module and pin.

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