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BAT_CHGI
I
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1-5. SYA CIRCUIT DESCRIPTION
1. Configuration and Functions
For the overall configuration of the SYA block, refer to the block diagram. The SYA block centers around a 8-bit microprocessor
(IC301), and controls camera system condition (mode).
The 8-bit microprocessor handles the following functions.
1. Operation key input, 2. Clock control and backup, 3. Power ON/OFF, 4. Storobe charge control.
Pin
Signal
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
24
26
27
28
29
30~33
34
35, 36
37
38
39
40
41
43~46
49
42
47
SCK
CARD
BACKUP CTL
CHG_CNT
HOT LINE
VF. LED (R)
NOT USED
NOT USED
VDD2
CHG ON
LCD ON1
PON2
P ON
BL ON
LENS 4M
ZUSB_DET
MAIN RESET
VF. LED (G)
UTX
ZUSB_TRIG
BATCHGERR
LCD ON2
BATCHGCNT
SW3.2ON
SCAN IN5~2
POPUP SW1
SCAN IN1, 0
VSS3
VDD3
RD SEL
(DBGP1/CLK)
(DBGP0/DATA0)
DC_IN
SCAN OUT3~0
BOOT
AV_JACK
I/O
O
I
O
O
I
O
O
O
Power
O
O
O
O
O
O
-
O
O
I
I
I
O
O
O
I
I
I
Power
Power
I
I
I
I
O
I
I
Outline
Serial data clock
SD card detection (L= card)
Backup battery charge control
Camera battery charge prohibition/permission
Hot line from ASIC
VF. LED (red) (H= lighting)
-
Backup 3.2 V
Strobo condensor charge control signal (H= charge)
LCD power ON/OFF singal 3 vL (H= ON)
D/D converter (1.8 V) ON/OFF control (H= ON)
D/D converter (1.2 V/3.3 V) ON/OFF control (H= ON)
LCD backlight ON/OFF control (H= ON)
Lens driver IC standard CLK
USB power detection terminal (L= detection)
System reset output
VF. LED (green) (H= lighting)
Power ON/OFF triger from cradle
Camera battery charge error input
LCD power ON/OFF signal 12 vL (H= start up)
BAT CHG permission signal
SW 3.2 V power (L= ON)
Keyscan input 5~2
POP UP detection (L= detection)
Keyscan input 1, 0
GND
Backup 3.2 V
System reservation terminal (on-tip debugger select terminal)
System reservation terminal (on-tip debugger)
System reservation terminal (on-tip debugger)
DC power connection detection input (L= detection)
Keyscan output 3~0
BOOT output
IC521 charge electric current monitoring
AV jack insertion detection (AD) (H= open/ M=composite/ L=D4 or component)
Debugger terminal
10
VSS2
Power
GND
21
CAMERA. LED
O
Camera LED green (H= lighting)
22
BAT/LED
O
LED red during charging (H= lighting)
23
HDMI_INT
I
Cradle connection detection
-
25
TH_ON
O
Battery temperature measurement power ON/OFF control (L= ON)
