Eiki LC-X800, Руководство по обслуживанию

Страница: 146 / 234

-146-
IC Block Diagrams
I�C BUS
Interface
Shift Register
Output Data
Latch
Input Data
Latch
Register
I/O Port
Power on
Reset
8
8
8
8
8
8
Input Data
Output Data
Input/Output
Reset
1
4 5 6 7
9
11
10 12
13
14
15 16
2
3
8
CS0 CS1
CS2
SCL
SDA
V
DD
GND
D7 D6
D5 D4
D3 D2
D1 D0
S0
●
M62320 <I/O Expander, IC8181, IC8182, IC8183, IC9911, IC9912>
18
17
16
15
14
13
12
11
10 9
8
7
6
5
4
3
2
1
HSCTL
C/HSYNC IN
VIDEO IN
VSEPA
VSYNC IN
CVPOL
CVEXI
CPSEL
GND
POLH
EXIH
POLV
EXIV
VCC
HDRV
CLAMP
VDRV
CPWID
Clamp pulse Gen.
V sync det.
V sync sepa
Sync Sepa.
H Sync det.
Hor. sync
Control
●
BA7078AF <Sync Separator, IC2011, IC8021>