PD17012GF-055_15 Datasheet, PDF (81/84 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
Appendix 4.5 Sound source switchover data output timing
The timing sound source switchover data output to the electronic volume is shown in Figure A-6.
Figure A-6. Voice Source Switchover Data Output Timing
CD pin or
TAPE pin
MUTE first-out
output
Approx. 40 ms
Switchover data
transmission
MUTE last-out
output
290-300 ms
MUTE pin
VOLSDA
Chip ID
D0
VOLSCL
MODE pin switchover
D0
: Sound/loudness data
"
" display or "
" display
Appendix 4.6 Bass data output timing
The timing of bass data output to the electronic volume is shown in Figure A-7.
Figure A-7. Bass Data Output Timing
Less than approx. 5 seconds
VOLSDA
Chip ID
D0
VOLSCL
"
" display
D0
: Bass step value data
VOLUP , VOLDOWN key
79