HD6433682 ETC, HD6433682 Datasheet - Page 108

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

6.1.2
SYSCR2 controls the power-down modes, as well as SYSCR1.
Legend X: Don't care.
Rev. 3.00, 05/03, page 78 of 472
Bit
7
6
5
4
3
2
1
0
System Control Register 2 (SYSCR2)
Bit Name
SMSEL
LSON
DTON
MA2
MA1
MA0
SA1
SA0
Initial
Value
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Sleep Mode Selection
Low Speed on Flag
Direct Transfer on Flag
These bits select the mode to enter after the execution of
a SLEEP instruction, as well as bit SSBY of SYSCR1.
For details, see table 6.2.
Active Mode Clock Select 2 to 0
These bits select the operating clock frequency in active
and sleep modes. The operating clock frequency
changes to the set frequency after the SLEEP instruction
is executed.
0XX:
100:
101:
110:
111:
Subactive Mode Clock Select 1 and 0
These bits select the operating clock frequency in
subactive and subsleep modes. The operating clock
frequency changes to the set frequency after the SLEEP
instruction is executed.
00:
01:
1X:
W
W
W
OSC
OSC
OSC
OSC
/8
/4
OSC
/2
/8
/16
/32
/64