Hitachi H8S/2646 Hardware Manual page 766

Hitachi 16-bit single-chip microcomputer h8s/2646 series
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Bit 7
DTON
Description
0
When the SLEEP instruction is executed in high-speed mode or medium-speed
mode, operation shifts to sleep mode, software standby mode, or watch mode*.
When the SLEEP instruction is executed in sub-active mode, operation shifts
to sub-sleep mode or watch mode.
1
When the SLEEP instruction is executed in high-speed mode or medium-speed
mode, operation shifts directly to sub-active mode*, or shifts to sleep mode or
software standby mode.
When the SLEEP instruction is executed in sub-active mode, operation shifts directly
to high-speed mode, or shifts to sub-sleep mode.
Note: * Always set high-speed mode when shifting to watch mode or sub-active mode.
Bit 6—Low-Speed ON Flag (LSON): When shifting to low power dissipation mode by executing
the SLEEP instruction, this bit specifies the operating mode, in combination with other control
bits. This bit also controls whether to shift to high-speed mode or sub-active mode when watch
mode is cancelled.
Bit 6
LSON
Description
0
When the SLEEP instruction is executed in high-speed mode or medium-speed
mode, operation shifts to sleep mode, software standby mode, or watch mode*.
When the SLEEP instruction is executed in sub-active mode, operation shifts to
watch mode or shifts directly to high-speed mode.
Operation shifts to high-speed mode when watch mode is cancelled.
1
When the SLEEP instruction is executed in high-speed mode, operation shifts to
watch mode or sub-active mode.
When the SLEEP instruction is executed in sub-active mode, operation shifts to sub-
sleep mode or watch mode.
Operation shifts to sub-active mode when watch mode is cancelled.
Note: * Always set high-speed mode when shifting to watch mode or sub-active mode.
734
(Initial value)
(Initial value)

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