PD17012GF-055_15 Datasheet, PDF (29/84 Pages) Renesas Technology Corp – SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR CAR-MOUNTED FM/MW/LW RADIO

µPD17012GF-055
Symbol
SEEKUP
(MANU.UP)
SEEKDOWN
(MANU.DOWN)
BAND
Description of Functions
<2> Adjusting the minute
Pressing the SEEKUP key once adds a minute; holding the key down for more than 0.5
seconds adds a minute every 100 ms. The minute adjustment operation does not affect the
hour.
Whenever the minute is adjusted, the value of the second counter is reset.
This key switches the radio band.
While the sound is set to radio mode, pressing the key switches the band as follows.
FM1 → FM2 → AM
AUTO
ATT/LOUD
SELECT
Every time the band is switched, band/preset displays for 5 seconds.
This key switches auto seek/manual seek.
While the “AUTO” display on the LCD panel is not lighted, pressing the key lights the “AUTO”
display. Subsequently pressing the SEEKUP / SEEKDOWN key operates auto seek up/
down.
While the “AUTO” display on the LCD panel is lighted, pressing the key turns off the display.
Subsequently pressing the SEEKUP / SEEKDOWN key operates manual seek up/down.
If the mode is other than radio mode, the key has no effect.
This key sets attenuator/loudness operation.
Pressing the key and releasing it within 2 seconds turns on the attenuator and lights the “ATT”
display on LCD panel.
While “ATT” is displayed, pressing the key again for less than about 2 seconds switches off the
“ATT” display and turn off attenuator.
Pressing the key for more than 2 seconds turns on loudness and switches on the “LOUD” display
on the LCD panel.
While “LOUD” is displayed, pressing the key again for more than about 2 seconds switches off the
“LOUD” display and turns off loudness.
The key selects the electronic volume adjustment function.
Pressing the key switchs the display on the LCD panel to the electronic volume display. Pressing
it again switches the adjustment function as follows.
Bass → Treble → Balance → Fader → Volume
VOLUP
VOLDOWN
While the electronic volume is displayed, you press the VOLUP , VOLDOWN keys for
each adjustment function.
Regarding the electronic volume displays, even if the initial setting diode PRIDISP = 1, releasing
any electronic volume adjustment key ( SELECT , VOLUP , VOLDOWN ) changes
the screen to the highest priority display in about 5 seconds.
This key adjusts any electronic volume function.
When the display on the LCD panel is other than electronic volume, pressing the key displays
electronic volume and pressing VOLUP or VOLDOWN increases or decreases the
sound volume.
While the electronic volume is displayed on the LCD panel, pressing the key adjusts the function
currently selected (bass, treble, balance, fader, or volume).
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