Sanyo VPC SX 560, VPC-SX560E, VPC-SX560EX 3. Key Operaiton, Table 4-2.Key Operation, 2. Internal Communication Bus, Fig. 4-1Internal Bus Communication System

2. Internal Communication Bus

The SY1 circuit board carries out overall control of camera operation by detecting the input from the keyboard and the condition of the camera circuits. The 8-bit microprocessor reads the signals from each sensor element as input data and outputs this data to the camera circuits (ASIC) or to the LCD display device as operation mode setting data. Fig. 4-1 shows the internal communication between the 8-bit microprocessor and ASIC.

	ASIC RESET
				S. REQ
8-bit		ASIC SO			ASIC
microprocessor
			ASIC SI
	ASIC SCK

ASIC TEST 0

ASIC TEST 2

Fig. 4-1 Internal Bus Communication System3. Key Operaiton

For details of the key operation, refer to the instruction manual.

SCAN
SCAN IN	0	1	2	3	4	5
OUT
0	LEFT	UP	RIGHT	DOWN	MODE	SET
1	SEQUENTIAL	SHOOTING	OPTION	STILL IMAGE	SHUTTER 1st	SHUTTER 2nd
	SHOT	VIDEO CLIPS
2	POWER	INFO	IMAGE	PLAY	TEST

Table 4-2. Key Operation

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