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UPD17708 데이터시트(PDF) 274 Page - NEC

부품명 UPD17708
상세설명  4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM
PDF  356 Pages
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제조업체  NEC [NEC]
홈페이지  http://www.nec.com/
Logo NEC - NEC

UPD17708 데이터시트(HTML) 274 Page - NEC

Back Button UPD17708 Datasheet HTML 270Page - NEC UPD17708 Datasheet HTML 271Page - NEC UPD17708 Datasheet HTML 272Page - NEC UPD17708 Datasheet HTML 273Page - NEC UPD17708 Datasheet HTML 274Page - NEC UPD17708 Datasheet HTML 275Page - NEC UPD17708 Datasheet HTML 276Page - NEC UPD17708 Datasheet HTML 277Page - NEC UPD17708 Datasheet HTML 278Page - NEC Next Button
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274
µPD17704, 17705, 17707, 17708, 17709
Figure 18-3. Configuration of IF Counter Mode Selection Register
Caution The IF counter and external gate counter functions cannot be used at the same time.
Name
Flag symbol
b3
I
F
C
M
D
1
b2
I
F
C
M
D
0
b1
I
F
C
C
K
1
b0
I
F
C
C
K
0
Address
22H
Read/Write
R/W
IF counter mode selection
Power-ON reset
WDT&SP reset
CE reset
Clock stop
0
1
0
1
0
0
0
0
1 ms
4 ms
8 ms
Open
1 kHz
100 kHz
900 kHz
Setting prohibited
Selects gate time of IF counter and reference frequency of external gate counter
Gate time of IF counter
Reference frequency of
external gate counter
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
1
External gate counter (FCG)
IF counter (AMIFC pin, AMIF count mode)
IF counter (FMIFC pin, FMIF count mode, 1/2 division)
IF counter (FMIFC pin, AMIF count mode)
Selects function of IF counter or external gate counter
0
0
1
1



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