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參數(shù)資料
| 型號： | UPD17071 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| 中文描述： | 4位單片機與鎖相環(huán)頻率合成器控制器的便攜式調頻/調幅廣播電視 |
| 文件頁數(shù)： | 25/48頁 |
| 文件大?。?/td> | 296K |
| 代理商： | UPD17071 |
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μ
PD17071GB-012
25
Momentary Key
Function Description
This key is used to call and write a preset memory.
It is valid when the radio is ON and initialization diode switch MEMSEL = 1.
(1) Calling preset memory
Each time the
The preset memory number is displayed for 0.5 second, and the corresponding frequency is received.
When a preset station is already selected, the preset station is incremented by one and selected.
Example: When preset M3 is already selected, this is incremented by one and M4 is selected.
When preset M10 is the current selection, M1 is selected next.
If this key is pressed while no preset station is selected, preset M1 is selected.
is is pressed, the preset station is incremented by one and called up.
(2) Writing preset memory
Data is written to a specified preset memory when this key is used in combination with the
key.
For an explanation of how to write data to a preset memory, refer to the description of the
key. When initialization diode switch MEMSEL = 0, this key functions as the
key.
This key is used to switch the display and the watch adjust mode.
It is valid when the watch function is used (when a high level is input to the CLKENA pin (pin 56)).,
When radio is ON: For switching display
When radio is OFF: For switching watch adjust mode
(1) Display switching (when radio is ON)
Each time the
MODE
key is pressed, the frequency display or watch display is alternately selected.
(2) Watch adjust mode switching (when radio is OFF)
Each time the
key is pressed, the mode is changed as follows:
MODE
For an explanation of how to adjust the time, refer to the description of the
and
keys.
The momentary keys are locked by the following key operation:
When STOPSEL = 0: Press the
When STOPSEL = 1: Press the
key and then the
key and then the
key twice.
key twice.
While keys are locked, no key operation other than that to manipulate key locking is valid.
By repeating the key locking operation while the keys are locked, the keys are unlocked.
If the momentary keys are locked by input to the KEYLOCK pin (pin 14), the keys cannot be unlocked by
a key operation.
UP
MEMORY UP
MEMORY UP
MEMORY
MEMORY
M1
MODE
MODE
MODE
ALARM
STOP
DOWN
Watch display
Alarm time setting mode
Watch adjust mode
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| UPD17071GB-012 | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD17071GB-012 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| UPD17071GB-012-1A7 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| UPD17072 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM |
| UPD17072GB | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM |
| UPD17072GB-XXX-1A7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
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