Picaso Processor
Datasheet
©
2017 4D Labs Semiconductors
Page 6 of 27
www.4dsystems.com.au
4.
Pin Configuration and Summary
Picaso Processor Pin Out
PIN
SYMBOL I/O
DESCRIPTION
1
IO1
I/O
General Purpose IO1 pin. This pin is 5.0V tolerant.
2
XR
A
4-Wire Resistive Touch Screen Right signal. Connect this pin to XR or X+
signal of the touch panel.
3
YU
A
4-Wire Resistive Touch Screen Up signal. Connect this pin to YU or Y+
signal of the touch panel.
4
SCK
O
SPI Serial Clock output. SD memory card use only. Connect this pin to
the SPI Serial Clock (SCK) signal of the memory card.
5
SDI
I
SPI Serial Data Input. SD memory card use only. Connect this pin to the
SPI Serial Data Out (SDO) signal of the memory card.
6
SDO
O
SPI Serial Data Output. SD memory card use only. Connect this pin to the
SPI Serial Data In (SDI) signal of the memory card.
7
RESET
I
Master Reset signal. Connect a 4.7K resistor from this pin to VCC.
8
SDCS
O
SD Memory-Card Chip Select. SD memory card use only. Connect this pin
to the Chip Enable (CS) signal of the memory card.
9, 20, 25, 41
GND
P
Device Ground.
10, 19, 26, 38, 57
VCC
P
Device Positive Supply.
I = Input, O = Output, P = Power, A = Analogue