Datasheet
4D SYSTEMS µVGA-III
© 2012 4D SYSTEMS Page 5 of 19 www.4dsystems.com.au
microVGA – VGA GRAPHICS ENGINE
3. Pin Configuration and Summary
H2 J3 J4 H1
H2 Pin Outs (Programming Header)
Pin
Symbol
I/O
Description
1
N/C
-
Not connected
2
RES
I
Master Reset signal. Internally pulled up to 3.3V via a 10K resistor. An active Low
pulse greater than 2 micro-seconds will reset the module. If the module needs to
be reset externally, only use open collector type circuits. This pin is not driven
low by any internal conditions. The host should control this pin via one of its port
pins using an open collector/drain arrangement.
3
N/C
-
Not connected
4
GND
P
Supply Ground
5
N/C
-
Not connected
6
RX
I
Asynchronous Serial UART Receive pin, TTL level. Connect this pin to the Transmit
(Tx) signal of other serial devices. Used in conjunction with the TX pin for
programming this module. This pin is tolerant up to 5.0V levels.
7
N/C
-
Not connected
8
TX
O
Asynchronous Serial UART Transmit pin, TTL level. Connect this pin to the Receive
(Rx) signal of other serial devices. Used in conjunction with the RX pin for
programming this module. This pin is tolerant up to 5.0V levels.
9
N/C
-
Not connected
10
VIN
P
Main Voltage Supply +ve input pin. Reverse polarity protected. Range is 4.0V to
5.5V, nominal 5.0V.
I = Input, O = Output, P = Power
IO1
IO2
IO3
IO4
IO5
GND
GND
BUS7
BUS6
BUS5
BUS4
BUS3
BUS2
BUS1
BUS0
N/C
N/C
I2C_SCL
I2C_SDA
N/C
N/C
5V
AUDIO
AUDENB
RESET
3.3V OUT
RX0
TX0
TX1
RX1
+5V
TX
RX
GND
RES
N/C
N/C
N/C
N/C
N/C
GND
GND
GND
BLUE
GND
RED
GREEN
HS
VS
GND
GND
BLUE
GND
GND
GND
GND
VS
HS
GREEN
RED