874
24.7.2
Hardware Standby Mode Timing
Figure 24-4 shows an example of hardware standby mode timing.
When the
STBY
pin is driven low after the
RES
pin has been driven low, a transition is made to
hardware standby mode. Hardware standby mode is cleared by driving the
STBY
pin high,
waiting for the oscillation stabilization time, then changing the
RES
pin from low to high.
Oscillator
RES
STBY
Oscillation
stabilization
time
Reset
exception
handling
Figure 24-4 Hardware Standby Mode Timing
24.8
Watch Mode
24.8.1
Watch Mode
CPU operation makes a transition to watch mode when the SLEEP instruction is executed in high-
speed mode or sub-active mode with SBYCR SSBY=1, LPWRCR DTON = 0, and TCSR
(WDT1) PSS = 1.
In watch mode, the CPU is stopped and supporting modules other than WDT1 are also stopped.
The contents of the CPUís internal registers, the data in internal RAM, and the statuses of the
internal supporting modules (excluding the SCI, ADC, and 14-bit PWM) and I/O ports are
retained.
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...