HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 637

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Software standby mode is then cleared at the rising edge on the NMI pin.
19.6.5
I/O Port Status: In software standby mode, I/O port states are retained. If the OPE bit is set to 1,
the address bus and bus control signal output is also retained. Therefore, there is no reduction in
current dissipation for the output current when a high-level signal is output.
Current Dissipation during Oscillation Stabilization Wait Period: Current dissipation
increases during the oscillation stabilization wait period.
Oscillator
ø
NMI
NMIEG
SSBY
Usage Notes
Figure 19.2 Software Standby Mode Application Example
NMI exception
handling
NMIEG=1
SSBY=1
SLEEP instruction
Software standby mode
(power-down mode)
stabilization
Oscillation
time t
OSC2
NMI exception
handling
627