H838532H datasheet(123/508 Pages) RENESAS

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Section 5 Power-Down Modes

Rev. 1.00 May 30, 2008 Page 103 of 484

REJ09B0436-0100

Bit 3: Direct transfer on flag (DTON)

This bit designates whether or not to make direct transitions among active (high-speed), active

(medium-speed) and subactive mode when a SLEEP instruction is executed. The mode to which

the transition is made after the SLEEP instruction is executed depends on a combination of this

and other control bits.

Bit 3

DTON

Description

• When a SLEEP instruction is executed in active mode,

(initial value)

a transition is made to standby mode, watch mode, or sleep mode

• When a SLEEP instruction is executed in subactive mode, a transition is made

to watch mode or subsleep mode

• When a SLEEP instruction is executed in active (high-speed) mode, a direct

transition is made to active (medium-speed) mode if SSBY = 0, MSON = 1, and

LSON = 0, or to subactive mode if SSBY = 1, TMA3 = 1, and LSON = 1

• When a SLEEP instruction is executed in active (medium-speed) mode, a direct

transition is made to active (high-speed) mode if SSBY = 0, MSON = 0, and

LSON = 0, or to subactive mode if SSBY = 1, TMA3 = 1, and LSON = 1

• When a SLEEP instruction is executed in subactive mode, a direct transition is

made to active (high-speed) mode if SSBY = 1, TMA3 = 1, LSON = 0, and

MSON = 0, or to active (medium-speed) mode if SSBY = 1, TMA3 = 1, LSON =

0, and MSON = 1

Bit 2: Medium speed on flag (MSON)

After standby, watch, or sleep mode is cleared, this bit selects active (high-speed) or active

(medium-speed) mode.

Bit 2

MSON

Description

Operation in active (high-speed) mode

(initial value)

Operation in active (medium-speed) mode

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