參數(shù)資料
型號: UPD178024GF
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
文件頁數(shù): 26/98頁
文件大?。?/td> 467K
代理商: UPD178024GF
Data Sheet U14608EJ1V0DS00
26
μ
PD178024GC-051
Momentary Key
Function
This key selects whether the local mode is used or not during auto tuning of the radio.
It is valid in the radio mode.
Each time this key is pressed, the local mode is turned on or off.
The auto tuning operation is performed as follows, depending on whether the local mode is on or off.
Local Mode
Operation
On
Auto tuning in local mode and DX mode
Off
Auto tuning in DX mode only
LOCAL
The on/off status of the local mode selected during an auto tuning operation is not reflected in the auto
tuning operation in progress, and will be valid when the next auto tuning operation is started.
LOUD
This key selects a loudness status.
It is valid in the power-on status.
Each time this key is pressed, loudness is turned on/off.
On power application, the loudness status selected when the power was turned off last is restored.
The default loudness status is off.
These are call and write keys of the preset memory of the radio.
They are valid in the radio mode.
A frequency in each band of FM1, FM2, FM3, AM1 (MW1, MW), and AM2 (MW2, LW) can be recorded
by using each key.
The operation of these keys is as follows, depending on the time for which a key is pressed.
Key Pressed for:
Operation
Less than 0.7
seconds
These keys function as preset memory calling keys.
When one of the keys is pressed, the preset memory number
corresponding to the key is displayed.
If the key is pressed and released within 0.7 seconds, the frequency
written to the corresponding preset memory is received.
0.7 seconds or
longer
The keys function as preset memory writing keys.
When one of the keys is pressed, the preset memory number
corresponding to the key is displayed.
If the key is held down for 0.7 seconds or longer, the frequency currently
displayed is written to the preset memory corresponding to the key.
At this time, the displayed preset memory number blinks only once (i.e.
goes off for about 500 ms).
After that, the preset memory number is displayed again. The “CH”
indication does not blink.
After the preset memory has been written, the frequency written to that
preset memory is received.
M1
M2
M3
M4
M5
M6
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