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UPD17708 Datasheet(PDF) 112 Page - NEC

Part # UPD17708
Description  4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM
PDF  356 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD17708 Datasheet(HTML) 112 Page - NEC

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µPD17704, 17705, 17707, 17708, 17709
112
11.2.7 Status of I/O port at reset
(1) At power-ON reset
All the I/O ports are set in the input mode.
The contents of the output latch are reset to “0”.
(2) At WDT&SP reset
All the I/O ports are set in the input mode.
The contents of the output latch are reset to “0”.
(3) At CE reset
The setting of the input or output mode is retained.
The contents of the output latch are also retained.
(4) On execution of clock stop instruction
The setting of the input or output mode is retained.
The contents of the output latch are also retained.
(5) In halt status
The previous status is retained.



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