Sanyo VPC-E60 Service Manual

Also see for VPC-E60: Instruction manual

Contents

– 9 –Fig. 5-1 Internal Bus Communication System2. Internal Communication BusThe SYA block carries out overall control of camera operation by detecting the input from the keyboard and the condition of thecamera circuits. The 8-bit microprocessor reads the signals from each sensor element as input data and outputs this data to thecamera circuits (ASIC) as operation mode setting data. Fig. 5-1 shows the internal communication between the 8-bit micropro-cessor, ASIC and SPARC lite circuits.Table 5-1. 8-bit Microprocessor Port Specification8-bitMicroprocessor ASICS. REQASIC SOASIC SIASIC SCKMAIN RESETPLLEN5443ILCD backlight ON/OFF signal44 LCD BL OSerial communication request signal50 SREQXCIN I Clock oscillation terminal for clock (32.768 kHz)5253NOT USED O -BR PI E I Barrier motor PI input (interruption)RESET I Microprocessor reset input45 TH TEMP I Internal temperature detection46 TIME OUT I Camera charging completed detection47 NOT USED O -48 BAT_TEMP I Battery temperature detection51 SCAN IN 4 I Key matrix input (interruption)49 BAT_OFF I Battery OFF detection signal input55 XCOUT O Clock oscillation terminal for clock (32.768 kHz)56 VSS1 - GND57 XIN I Main clock oscillation terminal (4 MHz)58 XOUT O Main clock oscillation terminal (4 MHz)59 VDD1 - VDD60 BATTERY I Battery voltage detection61 VMONIT I Main condenser charging voltage detection62 TSEN_SENSE I Touch sensor detection63 SO O Serial data output64 SI I Serial data input