UPD17704 Datasheet, PDF (165/356 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM

µPD17704, 17705, 17707, 17708, 17709
Figure 13-13. Configuration of Timer 0 Counter Clock Selection Register
Name
Timer 0 counter
clock selection
Flag symbol
b3 b2 b1 b0
TT TT
MM MM
00 00
ER CC
NE KK
S10
Address
2BH
Read/Write
R/W
0 0 100 kHz (10 µ s)
0 1 10 kHz (100 µ s)
1 0 2 kHz (500 µ s)
1 1 1 kHz (1 ms)
Sets basic clock of timer 0 counter
Resets timer 0 counter
0
Does not change
1
Resets counter
0
Stops
1
Starts
Starts or stops timer 0
Power-ON reset
WDT&SP reset
CE reset
Clock stop
0000
0000
Retained
0000
Caution When the TM0RES flag is read, 0 is always read.
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