HD6433832S Datasheet, PDF (520/560 Pages) Renesas Technology Corp – single-chip microcomputers

SYSCR1—System control register 1
H'F0
System control
Bit
7
6
5
4
3
2
1
0
SSBY STS2 STS1 STS0 LSON
—
—
—
Initial value
0
0
0
0
0
1
1
1
Read/Write
R/W
R/W
R/W
R/W
R/W
—
—
—
Low speed on flag
0 The CPU operates on the system clock (φ )
1 The CPU operates on the subclock (φ _SUB)
Standby timer select 2 to 0
0 0 0 Wait time = 8,192 states
1 Wait time = 16,384 states
1 0 Wait time = 32,768 states
1 Wait time = 65,536 states
1 _{* *} Wait time = 131,072 states
Software standby
0 When a SLEEP instruction is executed in active mode, a transition is
made to sleep mode.
When a SLEEP instruction is executed in subactive mode, a transition is
made to subsleep mode.
1 When a SLEEP instruction is executed in active mode, a transition is
made to standby mode or watch mode.
When a SLEEP instruction is executed in subactive mode, a transition is
made to watch mode.
Note: * Don’t care
505