– 8 –
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.
See next page
Pin
Signal
I/O
Outline
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
31
32
33
34
35
36
37
39
41
38
40
SCK
BACKUP_CTL
BAT_CHG ON
DC IN
LCD PWM
TSEN_CLK
BR MOTOR +
BR MOTOR –
VDD2
CHG_LED
SELF_LED
TH ON
BR PI ON
AV JACK
HOT LINE
SCAN IN0
CHGERR
USB CONNECT
SCAN IN1
BR DET SW
MAIN RESET
PRG ENA/DATA1
AVREF ON
TSEN_LED
CARD
PLLEN
SCAN OUT 2
SCAN OUT 1
SCAN OUT 0
VSS3
VDD3
(DBGP2)
(DBGP1/CLK)
(DBGP0/DATA0)
P ON
BAT_CHG_CNT
O
O
O
I
O
O
O
O
-
O
O
O
O
I
I
I
I
I
I
I
O
I
O
O
I
O
O
O
O
-
-
I
O
O
O
O
Serial clock output
Backup battery charging control
Camera charging control
DC JACK detection
LCD backlight brightness adjustment
Touch sensor clock (66 kHz)
Barrier motor c
Barrier motor control –
VDD
Charge LED (L= lighting)
Self timer LED (L= lighting)
Battery temperature detection power control (L= ON)
Barrier motor PI power ON/OFF
AV JACK detection
Hot line request from ASIC
Keymatrix input
Camera charging error detection
USB power detection terminal (L= detection)
Barrier motor detection switch
System reset (MRST)
Flash rewrite select terminal
AD VREF ON/OFF signal (L= ON)
Touch sensor LED (H= lighting)
Card detection
PLL oscillation ON/OFF
Key matrix output
Key matrix output
Key matrix output
GND
VDD
(Terminal for debugger)
(Terminal for debugger)
(Terminal for debugger)
D/D converter (digital system) ON/OFF signal
Charging currrent control
Key matrix input
10
VSS2
-
GND
21
SCAN IN2
I
Key matrix input
22
SCAN IN3
I
Key matrix input
23
NOT USED
O
-
25
ST_CHG ON
O
Strobo charging control
42
COMREQ/ZBOOT
I
Command request input (combined with BOOT output)
