Logic / Audio; General - Benefon SPICA TDP-60-HN Service Manual

5.1 LOGIC / AUDIO

OA1900 Processor/Audio
PROCESSOR

5.1.1 General

The entire radio audio and processor functions are found within a single
PA1900 board, through which all other modules are connected. Only the RF
signals have a different unit.
The processor controls the audio and radio (RF) modules, internal devices and
external accessories.
The µCBIC (processor-asic) includes:
µCBIC
PROM
SIS
4A1900GB.fm
H8/300H-cpu, 10k*8 CMOS RAM, 8 A/D, 4 D/
A, 48 pcs I/O lines,3 series-interfaces, 2
IG3010
modem-interfaces, i2c-interface, frequency
counter, realtime clock
29LV004 512k*8 EEPROM, program memory
Asic for SIS-function, 256k*8 EEPROM +
IG2048
Universal EEPROM for tuning values
Product: TDP-60-HN /
1.3.1999
OA1900 Processor/Audio
2