h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 962

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Appendix B Internal I/O Registers
SBYCR—Standby Control Register
Rev. 4.00 Jun 06, 2006 page 908 of 1004
REJ09B0301-0400
Bit
Initial value
Read/Write
Software standby
0
1
Transition to sleep mode after execution of SLEEP instruction in high-speed mode
or medium-speed mode
Transition to subsleep mode on execution of SLEEP instruction in subactive mode
Transition to software standby mode, subactive mode, or watch mode after execution
of SLEEP instruction in high-speed mode or medium-speed mode
Transition to watch mode or high-speed mode after execution of SLEEP instruction in
subactive mode
SSBY
R/W
7
0
Note: * This setting must not be used in the flash memory version.
Standby timer select 2 to 0
STS2
R/W
0
1
6
0
System clock select 2 to 0
0
1
0
1
STS1
R/W
0
1
5
0
0
1
0
1
0
1
0
1
STS0
0
1
0
1
R/W
4
0
Standby time = 8192 states
Standby time = 16384 states
Standby time = 32768 states
Standby time = 65536 states
Standby time = 131072 states
Standby time = 262144 states
Reserved
Standby time = 16 states *
—
0
1
0
1
0
1
H'FF84
—
—
3
0
Bus master is in high-speed mode
Medium-speed clock = /2
Medium-speed clock = /4
Medium-speed clock = /8
Medium-speed clock = /16
Medium-speed clock = /32
—
SCK2
R/W
2
0
SCK1
R/W
1
0
SCK0
R/W
0
0
System