參數(shù)資料
型號(hào)： UPD178024GC-051-8BT
廠商： NEC Corp.
元件分類： 通用總線功能
英文描述： 8-BIT SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO WITH CD PLAYER
中文描述： 8位單片機(jī)具有片上標(biāo)器，鎖相環(huán)頻率合成器，如柜臺(tái)，汽車調(diào)頻/中波/龍運(yùn)收音機(jī)帶CD播放器
文件頁(yè)數(shù)： 58/98頁(yè)
文件大小： 467K
代理商： UPD178024GC-051-8BT
Data Sheet U14608EJ1V0DS00
58
μ
PD178024GC-051
Indicator
Description
Digits <3> through <7>
These digits indicate the following:
(1) Reception frequency of radio
(2) Auto store memory indication of radio
(3) Playback time of CD player
(4) Program number of playback program of CD player
(5) Error status of CD player
(6) Indication of loading disc
(7) Indication of ejecting disc
(8) Indication of no disc
(9) Telephone mute indication
(10) Forced mute indication
(11) Adjustment mode of electronic volume
(12) Clock
(13) Power-on indication
At all other times, these digits remain dark.
(1) Reception frequency of radio
These digits display the frequency currently being received as follows when the frequency is
displayed in the radio mode.
Note that the first digit is not prefixed with 0 when a frequency is displayed.
Example of displaying frequency of FM band
To display the frequency of the FM band, a decimal point is displayed as “. ”.
“
8 7 . 5 0 ”: The frequency received is 87.50 MHz.
“ 1 0 8 . 0 0 ”: The frequency received is 108.00 MHz.
Example of displaying frequency of MW band
“
5 2 2 ”: The frequency received is 522 kHz.
“
1 6 2 0 ”: The frequency received is 1620 kHz.
Example of displaying frequency of LW band
“
1 4 4 ”: The frequency received is 144 kHz.
(2) Auto store memory indication of radio
While the auto store memory operation is in progress in the radio mode, digits <4> through <6> show
the following blinking message indicating that the auto store memory operation is in progress, at a
frequency of 1 Hz and with a duty factor of 50%.
“
A T P
”: Auto store memory display (blinks at a frequency of 1 Hz and with a duty factor of
50%)
At this time, digits <3> and <7> remain dark.
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