HD64F2357F20V Datasheet, PDF (923/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

SBYCR—Standby Control Register
H'FF38
Power-Down State
Bit
:
7
6
5
4
3
2
SSBY STS2 STS1 STS0 OPE
—
Initial value :
0
0
0
0
1
0
Read/Write : R/W
R/W R/W
R/W R/W
—
1
0
—
—
0
0
—
R/W
Output Port Enable
Reserved
Only 0 should be written
to this bit
0 In software standby mode, address bus and
bus control signals are high-impedance
1 In software standby mode, address bus and
bus control signals retain output state
Standby Timer Select
0 0 0 Standby time = 8,192 states
1 Standby time = 16,384 states
1 0 Standby time = 32,768 states
1 Standby time = 65,536 states
1 0 0 Standby time = 131,072 states
1 Standby time = 262,144 states
1 0 Reserved
1 Standby time = 16 states*
Note: * Not available in the F-ZTAT version.
Software Standby
0 Transition to sleep mode after execution of SLEEP instruction
1 Transition to software standby mode after execution of SLEEP instruction
Rev.6.00 Oct.28.2004 page 893 of 1016
REJ09B0138-0600H