UPD784907 Datasheet, PDF (12/98 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

µPD784907, 784908
4. SYSTEM CONFIGURATION EXAMPLE (AUTOMOTIVE CAR AUDIO (TUNER DECK))
Front panel
FIP^TM
Remote-controll
signal reception
circuit
µPC2800A, etc.
Key
matrix
LED
display
FIP
controller/driver
µPD16312, etc.
Audio control
circuit
Electronic
volume
EEPROM^TM
µPD784908
Interrupt input
General-purpose
port
3-wire serial I/O
SIO with automatic
transmission/reception
function
REGOFF
REGC
3-wire serial I/O
IEBus controller
Cassette deck
unit
IEBus
Tuner pack
CD unit
CD changer,
one CD, etc.
DSP unit
IEBus
driver/
receiver
TV unit
12
Data Sheet U11680EJ2V0DS00