HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 775

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

24.4
24.4.1
When a transition is made to software standby mode while the port high-impedance bit (HIZ) in
SBYCR is 0, I/O port states are retained. Therefore, there is no reduction in current consumption
for the output current when a high-level signal is output.
24.4.2
Current consumption increases during the oscillation stabilization wait period.
24.4.3
Relevant interrupt operations cannot be performed in module standby mode. Consequently, if the
CPU enters module standby mode while an interrupt has been requested, it will not be possible to
clear the CPU interrupt source or the DMAC/DTC activation source.
Interrupts should therefore be disabled before entering module standby mode.
24.4.4
MSTCR1 and MSTCR2 should only be written to by the CPU.
24.4.5
In sleep mode, data should not be accessed by the DMAC, DTC, or AUD.
Usage Notes
I/O Port Status
Current Consumption during Oscillation Stabilization Wait Period
On-Chip Peripheral Module Interrupt
Writing to MSTCR1 and MSTCR2
DMAC, DTC, or AUD Operation in Sleep Mode
Rev.4.00 Mar. 27, 2008 Page 731 of 882
24. Power-Down Modes
REJ09B0108-0400