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UPD17708 Datasheet(PDF) 306 Page - NEC

No. de pieza UPD17708
Descripción Electrónicos  4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM
PDF  356 Pages
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Fabricante Electrónico  NEC [NEC]
Página de inicio  http://www.nec.com/
Logo NEC - NEC

UPD17708 Datasheet(HTML) 306 Page - NEC

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µPD17704, 17705, 17707, 17708, 17709
21. RESET
21.1 Outline of Reset
The reset function is used to initialize the device.
The
µPD17709 can be reset in the following ways:
•
CE reset
•
Power-ON reset
•
Reset by RESET pin
•
WDT&SP reset
Figure 21-1. Configuration of Reset Block
XOUT
XIN
VDD
RESET
CE
STOP s
instruction
Voltage
detection
circuit
Falling
detection
circuit
Rising
detection
circuit
BTM0CY flag read
Power failure detection block
Timer FF block
Divider
Selector
Basic timer 0
carry
R
S
Q
Basic timer 0
carry disable FF
Power-ON clear signal (POC)
Reset
control
circuit
STOP instruction
CE reset timer
carry counter
Watchdog timer stack
overflow/underflow
detection block
CE reset signal
WDT&SP reset signal



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