HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 587

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

SYSCR—System Control Register
Initial value
Read/Write
Bit
Software standby
0
1
SSBY
R/W
7
0
SLEEP instruction causes transition to sleep mode
SLEEP instruction causes transition to software standby mode
Standby timer select 2 to 0
STS2
Bit 6
0
1
STS2
R/W
6
0
STS1
Bit 5
0
1
0
1
STS1
R/W
5
0
STS0
Bit 4
0
1
0
1
0
1
0
1
User bit enable
0
1
STS0
R/W
4
0
Waiting Time = 8,192 states
Waiting Time = 16,384 states
Waiting Time = 32,768 states
Waiting Time = 65,536 states
Waiting Time = 131,072 states
Waiting Time = 26,2144 states
Waiting Time = 1,024 states
Illegal setting
CCR bit 6 (UI) is used as an interrupt mask bit
CCR bit 6 (UI) is used as a user bit
Standby Timer
R/W
UE
3
1
NMI edge select
0
1
NMIEG
R/W
2
0
An interrupt is requested at the falling edge of NMI
An interrupt is requested at the rising edge of NMI
Rev.4.00 Aug. 20, 2007 Page 543 of 638
H'EE012
SSOE
Software standby output port enable
R/W
0
1
Appendix B Internal I/O Registers
1
0
RAM enable
In software standby mode,
all address bus and bus
control signals are high-
impedance
In software standby mode,
address bus retains output
state and bus control
signals are fixed high
0
1
RAME
R/W
On-chip RAM is disabled
On-chip RAM is enabled
0
1
REJ09B0395-0400
System control