PD64A_15 Datasheet, PDF (27/66 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR INFRARED REMOTE CONTROL TRANSMISSION

µPD64A, 65
5.3 Standby Mode Release Timing
(1) STOP mode release timing
Figure 5-1. STOP Mode Release by Release Condition
Standby
release signal
HALT instruction
(STOP mode)
Operating
mode
STOP mode
Clock
Oscillation
Oscillation
stopped
Wait
(52/fX + α)
HALT mode
Operating
mode
Oscillation
α : Oscillation growth time
Caution When a release condition is established in the STOP mode, the device is released from the STOP
mode, and goes into a wait state. At this time, if the release condition is not held, the device
goes into STOP mode again after the wait time has elapsed. Therefore, when releasing the STOP
mode, it is necessary to hold the release condition longer than the wait time.
(2) HALT mode release timing
Figure 5-2. HALT Mode Release by Release Condition
Standby
release signal
HALT instruction
(HALT mode)
Operating
mode
HALT mode
Operating mode
Clock
Oscillation
Data Sheet U14380EJ3V0DS00
25