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P1
P30
P2
P31
P3
P32
P4
P33
R1
P34
R2
P35
R3
P36
R4
P37
F4
ALE
G4
PSEN
T1
TESTMODE
T2
TVREMOTE
AC21
EXTMCLK
A5
EXTDCLK
E2
EOSDCLK
AE3
PRMA0
AC7
PRMA1
AD5
PRMA2
AD7
PRMA3
AF3
PRMA4
AD6
PRMA5
AE4
PRMA6
AF4
PRMA7
AE5
PRMA16
AF5
PRMA17
AE6
PRMA18
AF6
ROMWRNN
U1
VOUT0
T3
VOUT1
U2
VOUT2
U3
VOUT3
V1
VOUT4
V2
VOUT5
V3
VOUT6
W1
VOUT7
Y1
VOUT8
W2
VOUT9
W3
VOUT10
W4
VOUT11
Y2
VOUT12
Y3
VOUT13
AA1
VOUT14
AA2
VOUT15
AA3
VOUT16
AB1
VOUT17
ViewSonic Corporation
B
CPU port3, bit0. (RXD)
B
CPU port3, bit1. (TXD)
B
CPU port3, bit2. (INT0nn)
B
CPU port3, bit3
B
CPU port3, bit4. (T0)
B
CPU port3, bit5. (T1)
B
CPU port3, bit6. (WRnn)
B
CPU port3, bit7. (RDnn)
Adress latch enable. This pin is an
output pin when the built-in CPU
B
is enabled. When an external CPU
is used, this pin is an input pin
Program space enable. This pin is
an output pin when the built-in
B
CPU is enabled. When an external
CPU is used, this pin is input pin
I
I
I
I
EOSDCLK is a default to connect 2 times of display clock(i.e.,
B
EXTOCLKx2) for the test mode. It can be programmed to output an
internal display clock for an external OSD chip
O
CPU low byte address bit0
O
CPU low byte address bit1
O
CPU low byte address bit2
O
CPU low byte address bit3
O
CPU low byte address bit4
O
CPU low byte address bit5
O
CPU low byte address bit6
O
CPU low byte address bit7
O
CPU extended ROM address, bit 16
O
CPU extended ROM address, bit 17
O
CPU extended ROM address, bit 18
External write pulse. This pin is used in the ISP (in-system-
O
Video Output Interface
Video output interface can be routed to embedded DAC for testing.
VOUT[29:0] are routed to video DAC according to 10bit single
pixel format. VOUT]37:30] are routed to SVM DAC.
Single
Single
pixel
pixel 8bit
10bit
B
B2
B0
B
B3
B1
B
B4
B2
B
B5
B3
B
B6
B4
B
B7
B5
B
B8
B6
B
B9
B7
B
G2
G0
B
G3
G1
B
G4
G2
B
G5
G3
B
G6
G4
B
G7
G5
B
G8
G6
B
G9
G7
B
R2
R0
B
R3
R1
21
General purpose IO3 bit0
General purpose IO3 bit1
General purpose IO3 bit2
General purpose IO3 bit3
General purpose IO3 bit4
General purpose IO3 bit5
General purpose IO3 bit6
General purpose IO3 bit7
SCL of I2C interface (I)
SDA of I2C interface (B)
programming) function
TVOUT
Single
Dual pixel
pixel 6bit
8bit
OB0
OB1
B0
OB2
B1
OB3
B2
OB4
B3
OB5
B4
OB6
B5
OB7
OG0
OG1
G0
OG2
G1
OG3
G2
OG4
G3
OG5
G4
OG6
G5
OG7
OR0
OR1
U,S
U,S
U,S
U,S
U,S
U,S
U,S
U,S
S
S
D
D
D
D
D
Probe 8
Probe 9
Probe 10
Probe 11
Probe 12
Probe 13
Probe 14
Probe15
TCON
Dual
pixel
6bit
OB0
R,8
OB1
R,8
OB0
OB2
R,8
OB1
OB3
R,8
OB2
OB4
R,8
OB3
OB5
R,8
OB4
OB6
R,8
OB5
OB7
R,8
OG0
R,8
OG1
R,8
OG0
OG2
R,8
OG1
OG3
R,8
OG2
OG4
R,8
OG3
OG5
R,8
OG4
OG6
R,8
OG5
OG7
R,8
OR0
R,8
OR1
R,8
N1750w
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