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IC305 « PD780114GC-663-AB8
1/0
Description
Output terminal for link-off control.
Outputs "L" when UNI-LINK communication of the succeeding slave is authorized.
Beep signal output terminal.
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Drives the voltage buzzer with beep sound control output.
Output terminal for LCD driver slave IC serial communication authorization control.
Connects to pin © of the CS input terminal of the ~% PD7228AG (IC602) slave IC at serial
communication anthorization control to LCD driver slave IC.
Outputs "L" during serial communication with the LCD driver slave IC.
LINKOFF
BEEP
LCDCE1
Output terminal for LCD driver master IC serial communication authorization control.
Connects to pin @ of the CS input terminal of the ~ PD7228AG (IC601) master IC at serial
communication authorization control to the LCD driver master IC.
Outputs "L" during serial communication with the LCD driver master IC.
LCDCEO
Output terminal for LCD driver IC operation clock.
Connects to pin @ of the clock input terminal of 4 PD7228AG (IC601, 602) at operation
clock output to the LCD driver IC.
(Outputs a 524 KHz square wave at the time of LCD driver IC operation.)
LCDXCK
Output terminal for LCD driver IC reset control.
Connects to pin @ of the reset input terminal of « PD7228AG (IC601, 602) at reset control
output to the LCD driver IC.
Output terminal for inhibit control of the LCD driver IC display.
.
Controls the LCD drive voltage of «¢ PD7228AG (IC601, 602) C and turns off all displays at
display inhibit control to the LCD driver IC.
Outputs "L" to forcibly turn off everything as a countermeasure against erroneous display
from the time that voltage is applied to the LCD driver IC until initialization is completed.
Power supply terminal. (GND)
Output terminal for amber illumination light control.
(Outputs "H" when the amber illumination is turned on.)
LCDRST
LCDINH
10
COLORO
Output terminal for green illumination light control.
:
(Outputs "H" when the green illumination is turned on.)
COLORI
Output terminal for LED power supply control.
IZ
(Outputs "H" when power is supplied to the LED.)
LEDON
Output terminal for LCD driver IC power supply control.
Outputs "H" when power is supplied to "4 PD7228AD (C601, 602) at power supply control
output to the LCD driver IC.
Output terminal for lamp power supply control.
.
(Outputs "H" when power is supplied to the lamp.)
.
Output terminal for dimmer authorization.
Changes the power supply voltage applied to the lamp and controls the illumination of the
LCD back light at dimmer authorization control output to the LCD back light.
Outputs "H" when the dimmer is activated (When making the back light dark).
13
LCDON
—
4
LMPON
DEMMER
A
Output terminal for DSP IC power supply control.
Drives the power supply of the DC/DC converter at power supply control output to the audio
circuit that includes the DSP IC. Outputs "H" when power is supplied to the sudio circuit.
16
DSPON
Output terminal for amplifier mode control.
Outputs "H" when the amplifier mode is activated at amplifier mode control output to the
external power amplifier.
17
REMON
Input terminal for DSP IC serial communication acknowledgment.
Connects to pin @) of the ACK output terminal of DSP IC302 (TC9332F) at serial
communication parity inspection input.
18
DSPACK
Input terminal for the DSP IC serial communication data.
Connects to pin @ of the IFDO output terminal of DSP [C302 (TC9332F) at serial
communication data input from the DSP IC.
19
DSPSI
Output terminal for the DSP IC serial communication data.
Connects to pin @) of the IFDI input terminal (TC9332F) of DSP IC302 and to pin @ of SDT
input terminal IC307 (CXD2706Q) at serial communication data output to the DSP IC.
N
0
DSPSO
Output terminal for the DSP IC serial communication clock.
Connects to pin @ of the IFCK input terminal (TC9332F) of DSP 1C302 and to pin @ of
SCK input terminal IC307 (CXD2706Q) at serial communication clock output to the DSP IC.
21
DSPCKO
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