29
D21
Data Line
30
D22
Data Line
31
D23
Data Line
32
GND
Ground
33
PCLK/CMD DATASEL Pixel clock
Display RAM select. One address line of the
MCU for display where it is possible to select
either register or data interface
34
VSYNC/CS
Vertical Synchronization
Chip select
35
HSYNC/WE
Horizontal Synchronization Write-enable signal
36
DATA ENABLE/RE
Data-enable signal
Read-enable signal
37
SPI SCK
Clock for serial peripheral interface
38
SPI MOSI
Master Out Slave In (MOSI) of serial peripheral interface
39
SPI MISO
Master In Slave Out (MISO) of serial peripheral interface
40
SPI SS
Slave select for serial peripheral interface (SPI). Preferably a dedicated pin.
41
ENABLE
Display enable
42
I2C_SDA
Data line for I
2
C interface. Always implemented, bus type.
43
I2C_SCL
Clock line for I
2
C interface. Always implemented, bus type.
44
IRQ1
Interrupt
45
IRQ2
Interrupt
46
PWM
Back light control
47
RESET
Extension reset
48
VCC
3.3V power supply for extension board
49
VCC
3.3V power supply for extension board
50
GND
Ground
4.5
maxTouch LCD Extension Header Implementation
The following table provides the signals used by the maXTouch LCD.
Table 4-3. Signals Used by the maXTouch LCD
Pin number Name
Description
1
ID
Communication line to the ID chip on an extension board
2
GND
Ground
3
NC
Not connected
4
NC
Not connected
5
GPIO1
General purpose I/O
6
NC
Not connected
7
PWM(+)
Pulse-width modulation, alternatively positive part of differential PWM
8
NC
Not connected
Curiosity and Xplained Pro Boards
©
2020 Microchip Technology Inc.
DS70005414B-page 8
