— 41 —
Pin Name
Function
I/O
Description
1
SO
SERIALOUTPUT
–
2
SCLBUS SCL I/O
IIC Bus port, SCL
: Clock
3
SDA
BUS SDA
I/O
IIC Bus port, SDA : Data
4
D0
–
IN
NOT USED
5
D1
–
IN
NOT USED
6
D2
–
IN
NOT USED
7
D3
–
IN
NOT USED
8
GND
GND
I
9
D4
AV SWITCH 1
OUT
Connect to IC1001 2pin
10
D5
AV SWITCH 2
OUT
Connect to IC1001 4pin
11
D6
AV SWITCH 3
OUT
Connect to IC1002 2pin
12
D7
AV SWITCH 4
OUT
Connect to IC1002 4pin
13
VDD
VDD
–
5V
14
CS2
CHIP SELECT3
I
Fixed to Low
15
CS1
CHIP SELECT2
I
Fixed to Low
16
CS0
CHIP SELECT1
I
Fixed to Low
I/O Expander (IC899)
Mode
SWITCH 1
SWITCH 2
SWITCH 3
SWITCH 4
TV
Low
High
Low
High
AV1
(Composite)
Low
Low
Low
High
AV1
(S-Input)
High
Low
Low
High
AV2
Low
Low
Low
Low
Mode Switching Table