UPD17073 NEC, UPD17073 Datasheet - Page 121

• Manufacturer Part Number: UPD17073
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
• Manufacturer: NEC

Shift clock
Shift clock
Shift clock
(b) When forced wait status is set during wait status
(c) When forced wait status is set while wait status is released
(d) When wait status is released while wait status is released
The clock output waveform does not change. Neither is the counter reset. However, do not change the
clock frequency while the wait status is released.
Contents of output latch
Wait released status
Wait released status
Figure 14-6. Shift Clock Generation Timing of Serial Interface (3/4)
Figure 14-6. Shift Clock Generation Timing of Serial Interface (4/4)
Wait period
Forced wait by SIOTS
Forced wait
by SIOTS
Forced wait
by SIOTS
Contents of output latch
Contents of output latch
Wait status
Contents of output latch
Wait status
Wait released
Wait period
1/f
Wait released
SC
1/f
SC
PD17072,17073
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