Microchip Technology AC164144 Data Sheet

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  02/18/11

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companies. © 2011, Microchip Technology Incorporated, Printed in the U.S.A. All Rights Reserved. 03/11

DS51966A

*DS51966A*

• Controller-less graphics support for 4/8-bit STN, 4/8-bit CSTN, 18-bit HR-TFT and 9/12/18/24-bit TFT 

interfaces (additional samples can be obtained from 

• 16 Megabit (2 Mb x 8) serial Flash memory for additional data storage
• Display connector for interfacing with different display boards
• PICtail™ Plus interface for connecting to Explorer 16 Development Board
• Starter Kit connector

A Starter Kit or an Explorer 16 Development Board (DM240001) is required, but only one should be used. An
external 9V (AC162039) power supply can be connected through the Explorer 16 Development Board or directly
to connector J5. When a Starter Kit is used, the setup can be powered via the USB debugger. If your USB device
cannot supply enough power, the external power supply should be used. Finally, a display board, such as the
Graphics Display Truly 3.2" 240x320 Board (AC164127-4), should be connected to the display connector.
Several board settings can be selected:
• Jumper Pins 1-2: These pins set the board for internal memory mode. In this mode an 8 BPP color signal 

is sent to the LCD using internal SRAM memory from the PIC.

• Jumper Pins 2-3: These pins set the board for external memory mode. In this mode a 16 BPP color signal 

is sent to the LCD using external 8 Megabit SRAM (512 x 16) memory found on the board

The LCC Graphics PICtail™ Plus Daughter Board can be used in conjunction with the Microchip Graphics
Library. The Microchip Graphics Library and other firmware examples can be downloaded from the Low-Cost
Controllerless Graphics Website found on 

. Please refer to the “Getting Started” topic in the

Microchip Graphics Library Help at this location to program and run demonstration projects.
A different display board may also be available; please check 

 for available options.

If an end designer chooses to develop a custom display board, the included schematic shows the details of signal
connections. Please note that a different display may require modifications to the software provided with the
Microchip Graphics Library to function properly.

A1, B1

+9V

+9.0V

Power supply

A2, B2

GND

GND

Ground

A3, A4

+3.3V

+3.3V

Power supply

B3, B4

+5V

+5.0V

Power supply

A5, B5

GND

GND

Ground

A6

LEFT/X-

I/O

Touch panel left

B6

TOP/Y-

I/O

Touch panel top

A7

RIGHT/X+

I/O

Touch panel right

B7

BOTTOM/Y+

I/O

Touch panel bottom

A8

PEN

I

Pen interrupt (touch panel driver)

B8

SENSE

I

5-wire touch panel sense

A9

SCK

O

PIC

®

 MCU SPI Synchronous Serial Clock (SCK)

B9

SDO

O

PIC MCU SPI Data Out (SDO)

A10

SDI

I

PIC MCU SPI Data In (SDI)

B10

SS

O

PIC MCU SPI Slave Synchronization (SS)

A11

LCD_BE

O

Enable for backlight driver

B11

LCD PWM

O

PWM output for backlight driver

A12, B12

GND

GND

Ground

A13

SHIFT

O

Pixel shift signal

B13

DEN

O

Data enable for 24-bit digital RGB interface

A14

VSYNC

O

Frame pulse

B14

HSYNC

O

Line pulse

A15-A26, B15-B26 R0-R7, D0-D7, B0-B7

O

24-bit data

A27

LCD_RESET

O

Can be configured for display on or as general 

purpose output

B27

CS

I/O

Can be used for SPI Chip Select (CS) or as general 

purpose I/O

A28

SCK

I/O

Can be used for SPI Synchronous Serial Clock 

(SCK) or as general purpose I/O

B28

SDO (MOSI)

I/O

Can be used for SPI Master Out Slave In (MOSI) or 

as general purpose I/O

B29

SDI (MISO)

I/O

Can be used for SPI Master In Slave Out (MISO) or 

as general purpose I/O

A30-A31, B30-B31

NC

—

Not connected

A32, B32

GND

GND

Ground