HD6433935 Hitachi, HD6433935 Datasheet - Page 481

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

SYSCR2—System control register 2
Bit
Initial value
Read/Write
Noise elimination sampling frequency select
0 Sampling rate is ø
1 Sampling rate is ø
Direct transfer on flag
0 • When a SLEEP instruction is executed in active mode, a transition is
1
• When a SLEEP instruction is executed in subactive mode, a transition is
• When a SLEEP instruction is executed in active (high-speed) mode, a direct
• When a SLEEP instruction is executed in active (medium-speed) mode, a direct
• When a SLEEP instruction is executed in subactive mode, a direct
made to standby mode, watch mode, or sleep mode
made to watch mode or subsleep mode
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
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
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
Medium speed on flag
0 Operates in active (high-speed) mode
1 Operates in active (medium-speed) mode
—
—
7
1
OSC
OSC
/16
/4
—
—
6
1
—
—
5
1
NESEL
R/W
4
1
Subactive mode clock select
0
1
DTON
R/W
0
1
*
3
0
ø /8
ø /4
ø /2
W
W
W
H'F1
MSON
R/W
2
0
*: Don’t care
R/W
SA1
1
0
System control
SA0
R/W
0
0
469