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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
SYCKI
BATI
SYTEST
PON[1]
PON[0]
GPIOS[9]
GPIOS[8]
GPIOS[7]
GPIOS[5]
GPIOS[4]
GPIOS[3]
GPIOS[2]
GPIOS[1]
GPIOS[0]
KSO[4]
KSO[0]
KSI[3]
KSI[2]
KSI[1]
KSI[0]
BSRST
CLK32K
BAT_OFF
GND
-
PON
SDDET
VBDET
SW3.2ON
PANEL_OPEN
ZCARD
KEY_1ST
KEY_2ND
ZUSB_DET
GREEN_LED
RED_LED
POWER_KEY
CL
SCAN_IN2
SCAN_IN1
SCAN_IN0
I/O
I
I
I
I
O
O
O
O
O
I
I
I
I
I
O
O
O
I
I
I
I
Outline
Boot system reset signal
32 kHz clock input
Battery OFF detection
-
-
VDD1.1, VDD1.8, VDD3, VDD5, ON/OFF signal
ZCARD: when L SDDET: L → H
SW3.2 ON/OFF signal
LCD panel open/close detection
SD card detection
Key input 1st shutter
Key input 2nd shutter
USB detection
Green LED lighting
Power key (CL307 φ 0.8)
-
CL303 φ 0.8 PU (Test mode)
CL302 φ 0.8 PU (PWR test)
Power key (CL305 φ 0.8)
Red LED lighting
GPIOS[6]
-
O
-
KSO[3] CL
O
-
KSO[2] SCAN OUT2
O
SY CL308 φ 0.8 (Test mode)
KSO[1] SCAN OUT1
O
SY CL306 φ 0.8 (PWR test)
ZUSB_DET: when L VBDET: L → H
KSI[4] CL
I
-
Table 2-1. Power Sequencer Port Specification