參數(shù)資料
型號(hào)： UPD178024GC
廠商： NEC Corp.
元件分類： 8位微控制器
英文描述： 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述： 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁(yè)數(shù)： 70/98頁(yè)
文件大小： 467K
代理商： UPD178024GC
Data Sheet U14608EJ1V0DS00
70
μ
PD178024GC-051
8. ROTARY COMMANDER
(1) Input detection timing of rotary commander
Input to the rotary commander is detected as follows:
The RCMD1 (pin 18) and RCMD2 (pin 19) pins are tested every 2 ms two times to suppress chattering. After
chattering has been suppressed, the turn edges are detected as follows:
RCMD2
RCMD1
Right turn edge
Right turn edge
Left turn edge
Left turn edge
However, only the first turn edge of successive turn edges that are within 200 ms is valid.
(2) Function of rotary commander
The rotary commander functions in the same manner as the VOL UP key when it turns clockwise, and as the
VOL DOWN key when it turns counterclockwise. In either case, one turn edge operates the same as one
key input.
However, the operation cannot be repeated as is the case with holding down the VOL UP and
VOL DOWN keys.
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