Analog Devices Blackfin Landscape LCD EZExtender Manual Rev 11

Blackfin Landscape LCD EZ-Extender Manual xi Preface
 Capacitive touch controller:
 Analog Devices AD7147 capacitive touch controller
 Four push buttons and one scroll wheel
 1.8V to 3.3V I/O operation
 No power supply required: derives power from the EZ-KIT 
Lite/EZ-Board 
 CE certified
 Dimensions: 3.75 in. (height) x 3.5 in. (width)
Before using any of the interfaces, follow the setup procedure in “Land-
scape LCD EZ-Extender Setup” on page 1-2.
Example programs are available to demonstrate...

Manual Contents
xii Blackfin Landscape LCD EZ-Extender ManualProgrammers who are unfamiliar with Analog Devices processors can use 
this manual but should supplement it with other texts that describe your 
target architecture. For the locations of these documents, see “Related 
Documents”.
Programmers who are unfamiliar with CCES or VisualDSP++ should refer 
to the online help and user’s manuals. 
Manual Contents
The manual consists of:
 Chapter 1, “Landscape LCD EZ-Extender Interfaces” on page 1-1,...

Blackfin Landscape LCD EZ-Extender Manual xiii Preface
What’s New in This Manual
This is revision 1.1 of the Blackfin Landscape LCD EZ-Extender Manual. 
The manual has been updated to include CCES information. In addition, 
modifications and corrections based on errata reports against the previous 
manual revision have been made.
For the latest version of this manual, please refer to the Analog Devices 
Web site.
Technical Support
You can reach Analog Devices processors and DSP technical support in 
the...

Supported Products
xiv Blackfin Landscape LCD EZ-Extender ManualUSA only, call 1-800-ANALOGD (1-800-262-5643)
 Contact your Analog Devices sales office or authorized distributor. 
Locate one at:
www.analog.com/adi-sales
 Send questions by mail to:
Processors and DSP Technical Support
Analog Devices, Inc.
Three Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
USA
Supported Products
The Blackfin Landscape LCD EZ-Extender is a daughter board for the 
ADSP-BF526, ADSP-BF537, ADSP-BF538, and ADSP-BF548...

Blackfin Landscape LCD EZ-Extender Manual   xv Preface
selection opens a list of current manuals related to the product as well as a 
link to the previous revisions of the manuals. When locating your manual 
title, note a possible errata check mark next to the title that leads to the 
current correction report against the manual. 
Also note, 
MyAnalog is a free feature of the Analog Devices Web site that 
allows customization of a Web page to display only the latest information 
about products you are...

Related Documents
  xvi Blackfin Landscape LCD EZ-Extender Manual
Related Documents
For additional information about the product, refer to the following 
publications.
Table 1. Related Processor Publications
Title Description
ADSP-BF522/ADSP-BF523/ADSP-BF524/ 
ADSP-BF525/ADSP-BF526/ADSP-BF527 
Blackfin Embedded Processor Data Sheet
ADSP-BF534/ADSP-BF536/ADSP-BF537 
Blackfin Embedded Processor Data Sheet
ADSP-BF538/ADSP-BF538F Blackfin 
Embedded Processor Data Sheet
ADSP-BF542/ADSP-BF544/ADSP-BF547/...

Blackfin Landscape LCD EZ-Extender Manual 1-1 
1 LANDSCAPE LCD 
EZ-EXTENDER INTERFACES
This chapter provides the setup procedure for the Blackfin Landscape 
LCD EZ-Extender and EZ-KIT Lite/EZ-Board (ADSP-BF526, 
ADSP-BF537, ADSP-BF538, or ADSP-BF548) and describes all inter-
faces the extender supports. 
The information is presented in the following order.
“Landscape LCD EZ-Extender Setup” on page 1-2
“LCD Display” on page 1-3
“LCD Touch Controller (AD7879)” on page 1-4
“Capacitive Touch Controller...

Landscape LCD EZ-Extender Setup
1-2 Blackfin Landscape LCD EZ-Extender Manual
Landscape LCD EZ-Extender Setup
It is very important to set up all components of the system containing the 
Blackfin Landscape LCD EZ-Extender, then apply power to the system. 
The following procedure is recommended for the correct setup. 
1. Read the applicable design interface section in this chapter—the 
text provides an overview of the interface capabilities.
2. Read “System Architecture” on page 2-2 to understand the...

Blackfin Landscape LCD EZ-Extender Manual 1-3 Landscape LCD EZ-Extender Interfaces
LCD Display
The Blackfin Landscape LCD EZ-Extender is shipped with a 3.5 in. land-
scape, QVGA (320 x RGB x 240) display with an LCD backlight. All 
LCD data, touchscreen pins, and power pins connect to the display via a 
single connector (
P1). The 18-bit display operates in 16-bit mode 
(RGB 5-6-5) and connects to the PPI [15–0] data pins of the processor. 
The display also uses the serial peripheral interconnect (SPI)...

LCD Touch Controller (AD7879)
1-4 Blackfin Landscape LCD EZ-Extender Manual
LCD Touch Controller (AD7879)
The Blackfin Landscape LCD EZ-Extender is shipped with a low-cost 
resistive touch controller (Analog Devices AD7879). The four pins gener-
ated by activating the LCD display (X+, X-, Y+, Y-) connect to a single 
connector (
P1), controlled via the LCD display. You can access the con-
troller via the SPI interface of the Blackfin processor. The controller 
generates an interrupt request for the...