367
SYSCR1—System control register 1
H'F0
System control
Bit
Initial value
Read/Write
7
SSBY
0
R/W
6
STS2
0
R/W
5
STS1
0
R/W
3
LSON
0
R/W
0
—
1
—
2
—
1
—
1
—
1
—
4
STS0
0
R/W
Software standby
0
When a SLEEP instruction is executed in active mode, a transition is
made to sleep mode.
1
Standby timer select 2 to 0
0
Wait time = 8,192 states
Wait time = 16,384 states
0 0
1
Wait time = 32,768 states
Wait time = 65,536 states
1 0
1
1
*
Wait time = 131,072 states
Low speed on flag
0
The CPU operates on the system clock (ø)
1
The CPU operates on the subclock (ø )
SUB
*
When a SLEEP instruction is executed in subactive mode, a transition is
made to subsleep mode.
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
*