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27.1.1999
4A0701GB.__1
2
Product: TDP-52-SN3 (Sigma Gold) / OA0701 Processor
5.1 LOGIC / AUDIO
OA0701 Processor
Processor
5.1.1 General
The entire radio audio and processor functions are found within a single
PA0700 board, through which all other modules are connected. Only the RF
signals have a different path and the keyboard has a different unit.
The processor controls the audio and radio modules, internal devices and
external accessories.
The processor includes:
CPU 68HC11A1 8-bit, 8 A/D, 512*8 EEPROM, 256*8 RAM, I/O
PROM 28F020 256*8 EEPROM, program memory
RAM 62256 8K*8 CMOS RAM, number memory
ASIC IA8001
32 pcs out and 14 pcs inp, 3 series out, 3 analog
out, frequency counter, clock
SIS 68HC11A8
SIS function, 8k ROM, 512*8 EEPROM, 256*8
RAM