PD17012_15 Datasheet, PDF (285/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
Figure 22-10. Status Transition of BTM0CY Flag
CE = low
CE = any
<1> _{VDD = low}
Operation stops
VDD = L → 3.5 V
<2> _{Crystal oscillation starts}
Forced halt (approx. 50 ms)
CE = high
Disables setting of
BTM0CY flag.
<4>
Clock stop
<3>
Power-on reset
CE = L
CE = H
STOP 0
<5>
Normal
operation
CE = H → L
<6>
<7>
Normal ^{BTM0CY = 0}
operation
CE reset
<8>
CE = L → H
Normal operation
CE reset wait
<9>
Basic timer 0 carry
FF setting pulse rises.
CE = L → H
Crystal oscillation starts
<10>
<11>
Forced halt (50 ms)
SKT1 BTM0CY or
SKF1 BTM0CY
SKT1 BTM0CY or
SKF1 BTM0CY
<12>
Clock stop
Enables setting
of BTM0CY flag
STOP 0
<13>
Normal
operation
CE = H → L
CE = L → H
CE = L → H
<14>
<15>
Normal ^{BTM0CY = 1}
operation
CE reset
<16>
Normal operation
CE reset wait
<17>
Basic timer 0 carry
FF setting pulse rises.
Crystal oscillation starts
Forced halt (50 ms)
Data Sheet U10101EJ4V0DS
283