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BAT_CHGI
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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
SCLK
ZCARD
BACKUP CTL
CHG_CNT
HOT LINE
VF. LED (R)
LCD PWM
NOT USED
VDD2
CHG ON
LCD ON1
CLKSEL0
P ON
BL ON
LENS 4M
NOT USED
MRST
VF. LED (G)
ZUSB_DET
USB_TRIG
BATCHGERR
LCD ON2
BATCHGCNT
AVREF ON
SCAN IN5~2
NOT USED
SCAN IN1, 0
VSS3
VDD3
RD SEL
FLW_SCK
FLW_SO
DC_IN
SCAN OUT3~0
BOOT_COMREQ
ZAV_JACK
I/O
O
I
O
O
I
O
O
-
-
O
O
O
-
O
O
-
O
O
I
I
I
O
O
O
I
-
I
-
-
I
I
O
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 start-up signal output (H= start up)
ASIC clock selection (fixing)
D/D converter ON/OFF control (H= ON)
LCD backlight ON/OFF control (H= ON)
Lens driver IC standard CLK
-
System reset output
VF. LED (green) (H= lighting)
Cradle USB trigger detection
Camera battery charge error detection (L= detection)
LCD power control (12 vL)
Camera charge control
SW 3.2 V ON/OFF control (L= ON)
Keyscan input 5~2
-
Keyscan input 1, 0
GND
Backup 3.2 V
ON-tip debugger select terminal
Serial data clock for flash
Serial data output for flash
DC power connection detection input (L= detection)
Keyscan output 3~0
Command request input (combined with BOOT output)
IC521 charge electric current monitoring
AV jack detection (L= HD/ M=SD/ H=USB cable or no cable)
USB detection input
10
VSS2
-
GND
21
CAM_LED
O
Cradle camera detection display LED drive
22
BAT_LED
O
Cradle charge display LED drive
23
PLLEN
O
PLL ON/OFF control (H= ON)
-
25
TH_ON
O
Temperature sensor power ON/OFF