PICASO Datasheet, PDF (6/24 Pages) List of Unclassifed Manufacturers – Embedded Graphics Processor

4D SYSTEMS
PICASO Processor
PICASO Processor Pin Out (continued…)
Pin Symbol I/O Description
11
D5
I/O Display Data Bus bit 5.
12
D4
I/O Display Data Bus bit 4.
13
D3
I/O Display Data Bus bit 3.
14
D2
I/O Display Data Bus bit 2.
15
D1
I/O Display Data Bus bit1.
16
D0
I/O Display Data Bus bit 0.
17
D6
I/O Display Data Bus bit 6.
18
D7
I/O Display Data Bus bit 7.
21
D8
I/O Display Data Bus bit 8.
22
D9
I/O Display Data Bus bit 9.
23
D10
I/O Display Data Bus bit 10.
24
D11
I/O Display Data Bus bit 11.
27
D12
I/O Display Data Bus bit 12.
28
D13
I/O Display Data Bus bit 13.
29
D14
I/O Display Data Bus bit 14.
30
D15
I/O Display Data Bus bit 15.
31
RX1
I
Asynchronous Serial port COM1 receive pin, RX1. Connect this pin to external
serial device Transmit (Tx) signal. This pin is 5.0V tolerant.
32
TX1
O
Asynchronous Serial port COM1 transmit pin, TX1. Connect this pin to
external serial device receive (Rx) signal. This pin is 5.0V tolerant.
Asynchronous Serial port Transmit pin, TX. Connect this pin to host micro-
33
TX0
O controller Serial Receive (Rx) signal. The host receives data from PICASO via
this pin. This pin is 5.0V tolerant.
Asynchronous Serial port Receive pin, RX. Connect this pin to host micro-
34
RX0
I controller Serial Transmit (Tx) signal. The host transmits data to PICASO via
this pin. This pin is 5.0V tolerant.
35
RES
O
Display RESET. PICASO initialises the display by strobing this pin LOW.
Connect this pin to the Reset (RES) signal of the display.
36
SDA
I/O I2C Data In/Out.
37
SCL
O I2C Clock Output.
39
CLK1
I Device Clock input 1 of a 12MHz crystal.
40
CLK2
O Device Clock input 2 of a 12MHz crystal.
42
BUS6
I/O General Purpose Parallel I/O BUS(0..7), bit 6. This pin is 5.0V tolerant.
43
BUS7
I/O General Purpose Parallel I/O BUS(0..7), bit 7. This pin is 5.0V tolerant.
44
IO5/BUS_WR
I/O
General Purpose IO5 pin. Also used for BUS_WR signal to write and latch the
data to the parallel GPIO BUS(0..7).
Audio Enable. Connect this pin to amplifier control.
45
AUDENB
O LOW: Enable external Audio amplifier.
HIGH : Disable external Audio amplifier.
46
AUDIO
O
Pulse Width Modulated (PWM) Audio output. Connect this pin to a 2 stage
low pass filter then into an audio amplifier.
47
XL
O
4-Wire Resistive Touch Screen Left signal. Connect this pin to XL or X- signal
of the touch panel.
48
YD
O
4-Wire resistive touch screen bottom signal. Connect this pin to YD or Y-
signal of the touch panel.
DC-DC high voltage enable signal. This maybe the high voltage that drives the
49
DCENB
O
LCD backlight or the OLED panel supply.
High: Enable DC-DC converter.
Low : Disable DC-DC converter.
50
BUS0
I/O General Purpose Parallel I/O BUS(0..7), bit 0. This pin is 5.0V tolerant.
51
BUS1
I/O General Purpose Parallel I/O BUS(0..7), bit 1. This pin is 5.0V tolerant.
I = Input, O = Output, P = Power, A = Analogue
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