Method of controlling data writing into on-board microcomputer
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United States of America Patent
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-
Nov 10, 1998
Grant Date -
N/A
app pub date -
Dec 24, 1996
filing date -
Jan 17, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A user board has an on-board microcomputer including a flash memory and an on-board writing program memory, a user circuit, a reset circuit, a first OR gate, and a second OR gate. A detected signal for resetting the user circuit in an on-board writing mode is supplied from an on-board writing host through the second OR gate to prevent the user circuit from affecting a writing control signal and data to be written into the flash memory.
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