Sanyo VPC-CS1 Service Manual page 6

5. Power Sequencer Description
For the overall configuration of the power sequenser, refer to the block diagram. This circuit block consists primarily of the power
sequencer block inside the ASIC.
The power sequencer have functions for receiving user operations which signify that the camera has been turned on and power
ON/OFF function.
Pin Signal
zSYRSTI BSRST
SYCKI CLK32K
BAT_OFF
BATI
SYTEST GND
PON[1] -
PON[0] PON
SDDET
GPIOS[9]
VBDET
GPIOS[8]
GPIOS[7] SW3.2ON
GPIOS[6]
-
GPIOS[5]
PANEL_OPEN
GPIOS[4] ZCARD
GPIOS[3] KEY_1ST
GPIOS[2] KEY_2ND
GPIOS[1] ZUSB_DET
GPIOS[0] GREEN_LED
KSO[4] RED_LED
KSO[3] CL
KSO[2] SCAN OUT2
KSO[1] SCAN OUT1
KSO[0] POWER_KEY
KSI[4] CL
KSI[3]
CL
KSI[2] SCAN_IN2
KSI[1]
SCAN_IN1
KSI[0] SCAN_IN0
I/O
I Boot system reset signal
32 kHz clock input
I
I Battery OFF detection
-
I
O -
O VDD1.1, VDD1.8, VDD3, VDD5, ON/OFF signal
ZCARD: when L SDDET: L → H
O
ZUSB_DET: when L VBDET: L → H
O
O
SW3.2 ON/OFF signal
O -
I
LCD panel open/close detection
I SD card detection
Key input 1st shutter
I
Key input 2nd shutter
I
USB detection
I
Green LED lighting
O
Red LED lighting
O
-
O
SY CL308 φ 0.8 (Test mode)
O
SY CL306 φ 0.8 (PWR test)
O
Power key (CL307 φ 0.8)
O
I -
I -
CL303 φ 0.8 PU (Test mode)
I
CL302 φ 0.8 PU (PWR test)
I
Power key (CL305 φ 0.8)
I
Table 2-1. Power Sequencer Port Specification
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Outline