Sanyo VPC-TH1 - Page 8

– 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
46
NOT USED
-
See next page →
Pin
Signal
1
2
3
4
5
6
7
8
9
11~14
15
16
17
18
19
20
24
26
27
28
29
33
34
35
36
37
38
39
42~44
47
40
45
ASIC_SCK
ZCARD
ZBACKUPCTL
CHG_CNT
HOT LINE
GREEN_LED
RED_LED
ST_CHG_ON
VDD2
SCAN IN4~1
ZUSB_DET
HDMI_HPD
ZCHG_DONE
TIMEOUT
BAT_UTX
BAT_URX
USB_ON
NOT USED
MRST
SW3.2ON
PON2
PLLEN
ERR
VSS3
VDD3
RDSEL
CLK (SFW)
DATA0 (SFW)
DC_IN
SCAN OUT2~0
ZOOM_SW_AD
ZAV_JACK
I/O
O
I
O
O
I
O
O
O
-
I
I
I
I
I
O
I
O
O
O
O
O
O
I
-
-
I
I
I
I
O
I
I
Outline
Serial clock output (CL required)
Card detection (SW3.2 V required)
Backup battery charge control
Camera charge permission
Hot line request from ASIC
Switch unit LED (green) (H= lighting)
Switch unit LED (red) (H= lighting)/ combine with UTX (CL required)
-
Keyscan input 4~1
USB power detection terminal (L= detection)
HDMI hot plug detection
Main condensor charge voltage detection
Charge done detection
Battery power detection IC UART sending
USB charge ON/OFF
(TGVD delete)
System reset (MRST)
SW 3.2 V power (L= 3.2 V)
Digital system power start-up signal
PLL enable signal
Charge error detection
-
-
Debugger select terminal
Debug CN
Debug CN
DC jack insertion detection (SW3.2 V required)
Keyscan output 2~0
Zoom key AD input
-
Cable detection
Battery power detection IC UART recieving
10
VSS2
-
-
21 SCAN_IN0
I
Keyscan input 0
22 PANEL_OPEN
I
Panel open detection (MR sensor)
23 KEY 2nd
I
S2 key input
Strobo charge control (H= charge)
25 NOT USED
I
(HDMI_INT delete)
30 NOT USED
I (I2CSDATA delete)
31 P ON
O Digital system power start-up signal
32 NAND_RESET
O OneNAND reset
41 HINGE
I
Panel rotation detection