HD6433644R datasheet(113/549 Pages) RENESAS

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Section 5 Power-Down Modes

Rev. 6.00 Sep 12, 2006 page 93 of 526

REJ09B0326-0600

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, 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

(initial value)

• 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), active (medium-speed), or sleep (medium-speed) mode.

Bit 2: MSON

Description

• After standby, watch, or sleep mode is cleared, operation is in active (high-

speed) mode

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

to sleep (high-speed) mode

(initial value)

• After standby, watch, or sleep mode is cleared, operation is in active

(medium-speed) mode

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

to sleep (medium-speed) mode

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