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7. 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[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
CHG_CNT
TIMEOUT
SW3.2ON
PANEL_OPEN
ZCARD
KEY_1ST
KEY_2ND
ZUSB_DET
GREEN_LED
RED_LED
SCAN OUT0
SCAN_IN3
SCAN_IN2
SCAN_IN1
SCAN_IN0
I/O
I
I
I
I
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
-
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
Keyscan output signal
Keyscan input signal
Keyscan input signal
Keyscan input signal
Keyscan input signal
Red LED lighting
GPIOS[6]
DC_IN_MONI
O
DC IN detection
KSO[3]
-
O
-
KSO[2]
SCAN OUT2
O
Keyscan output signal
KSO[1]
SCAN OUT1
O
Keyscan output signal
-
KSI[4]
SCAN_IN4
I
Keyscan input signal
Table 2-1. Power Sequencer Port Specification
PON[1]
-
O
-
