Sanyo PLC-XU47 Service Manual page 44

Control Port Functions
Pin No. Name
188 ROMOE
126 ROMWE
125 RAMOE
54 RAMWE
177 Port C1
230 Port C0
238 EXTINT
120 NMI
48 RESET
233 ADR24B
133 MODE3
290 MODE2
248 MODE1
232 MODE0
Note : Other functions except for system control are not listed.
● IIC Bus D/A Converter (IC3531, M62398FP) Port Functions
Pin No. Name
1 R
2 SCL
3 SDA
4 A07
5 A08
6 A09
7 A10
8 A11
9 A12
10 VrefL
11 VrefU1
12 Vss
13 VrefU2
14 A01
15 A02
16 A03
17 A04
18 A05
19 A06
20 Vcc
21 Vdd
22 CS2
23 CS1
24 CS0
● IIC Bus DA Converter ( IC7961, M62393) Port Functions
Pin No. Name
1 R
2 SCL
3 SDA
4 AO5
5 AO6
6 AO7
7 AO8
8 VrefL
9 VrefU1
10 GND
11 VrefU2
12 AO1
13 AO2
14 AO3
15 AO4
16 Vcc
17 Vdd
18 CS2
19 CS1
20 CS0
Function Name Function
ROMOE ROM Output Enable for Flash ROM
ROMWE ROM Write Enable for Flash ROM
RAMOE RAM Output Enable
RAMWE RAM Write Enable
CS3 Chip Select 3
CS2 Chip Select 2
EXTINT External Interrupt Input
- Non-maskable Interrupt (Not used)
RESET Master Reset Input
ADR24B 24bit Address Select Input
MODE3 Internal Oscillator Enable Input
MODE2 Reserved
MODE1 Internal MCLK PLL Enable Input
MODE0 Internal DCLK PLL Enable Input
Function
Reset input
P_SCK2
P_SDA2
REF_R
REF_G
REF_B
-
-
-
DAC Lower Reference Voltage input
DAC Upper Reference Voltage input (CH5~CH8)
GND
DAC Upper Reference Voltage input (CH1~CH 4)
R_V1
R_V2
G_V1
G_V2
B_V1
B_V2
Power Supply for Output Buffer (+12V)
Power Supply +5V
Slave address setting port 2 (Vdd)
Slave address setting port 1 (Vdd)
Slave address setting port 0 (GND)
Function
Reset
IIC SCL
IIC SDA
FAN_CON_A
FAN_CON_B
FAN_CON_C
Not used
GND
Not used
Not used
Not used
Not used
5 V
5 V
Chip Select 2
Chip Select 1
Chip Select 0
IIC BUS SCL
IIC BUS SDA
Not used
Not used
Not used
Video signal reference voltage (-) R
Video signal reference voltage (+)R
Video signal reference voltage (-)G
Video signal reference voltage (+)G
Video signal reference voltage (-)B
Video signal reference voltage (+)B
Action
Fixed "H"
Active "L "
Active "L "
D/A converter lower ref. voltage
D/A converter upper ref. voltage (CH5~CH8)
GND
D/A converter upper ref. voltage (CH1~CH4)
Vcc(5V)
Vdd(5V)
Fixed "L"
Fixed "L "
Fixed "L "
-44-
Polarity
Not used
Not used
Not used
Not used
(set L)
(set H)
(set H)
(set L)
(set H)
(set H)
Connected to GND
Connected to Vcc
Connected to Vcc
I/O
O
O
O
O
O
O
I/O
I
I
I
I
I
I
I
I/O
I
I
I/O
O
O
O
O
O
O
-
-
-
-
O
O
O
O
O
O
-
-
I
I
I