MOS Integrated Circuit Data Sheet

186
µ PD17062
Fig. 14-11 BTM0CY Flag Operation
(a) When BTM0CY flag not detected even once (neither SKT1 BTM0CY nor SKF1 BTM0CY executed)
(b) When power failure detected with BTM0CY flag
5 V
0 V
V
DD
CE
Timer carry FF
set pulse
BTM0CY
Fig. 14-12
operation
Timer time
switching
STOP
0000B
5 V
0 V
V
DD
CE
Timer carry FF
set pulse
BTM0CY
SKT1 BTM0CY
instruction
Timer time
switching
STOP
Fig. 14-12
operation
BTM0CY = 0
Power failure
BTM0CY = 1
No power failure
BTM0CY = 1
No power failure