BeagleBone LCD7 Cape
System Reference Manual
Revision A3
Page 6 of 27
Table of Contents
FIGURES ...................................................................................................................................................... 7
TABLES ........................................................................................................................................................ 7
1.0
INTRODUCTION............................................................................................................................... 9
2.0
CHANGE HISTORY .........................................................................................................................10
2.1
C
HANGE
H
ISTORY
............................................................................................................................10
2.2
A1
VS
.
A2 ........................................................................................................................................10
3.0
BEAGLEBONE LCD7 CAPE OVERVIEW ...................................................................................11
3.1
D
ESCRIPTIONS
..................................................................................................................................11
3.2
I
N
T
HE
B
OX
.....................................................................................................................................12
3.3
G
ETTING
S
TARTED
...........................................................................................................................13
3.4
R
EPAIRS
...........................................................................................................................................13
4.0
FEATURES AND SPECIFICATIONS ............................................................................................14
4.1
K
EY
C
OMPONENT
L
OCATIONS
.........................................................................................................15
4.2
LCD
P
ANEL
.....................................................................................................................................16
4.3
I
NDICATORS
.....................................................................................................................................17
4.4
E
XPANSION
H
EADER
........................................................................................................................17
4.5
B
UTTONS
.........................................................................................................................................17
4.6
DC
P
OWER
C
ONNECTOR
..................................................................................................................17
4.7
M
ECHANICAL
S
PECIFICATIONS
........................................................................................................18
4.8
E
LECTRICAL
S
PECIFICATIONS
..........................................................................................................18
5.0
SYSTEM ARCHITECTURE AND DESIGN ..................................................................................19
5.1
S
YSTEM
B
LOCK
D
IAGRAM
...............................................................................................................19
5.2
LCD
I
NTERFACE
..............................................................................................................................20
5.2.1
Expansion connectors ............................................................................................................20
5.2.2
Non-Inverting Bus Transceiver ..............................................................................................20
5.2.3
Touchscreen Interface ...........................................................................................................21
5.3
P
OWER
M
ANAGEMENT
.....................................................................................................................22
5.3.1
LCD Power Supply ................................................................................................................22
5.3.2
Backlight Power Supply .........................................................................................................23
5.4
EEPROM ........................................................................................................................................24
5.4.1
EEPROM Address .................................................................................................................25
5.4.2
I2C Bus ..................................................................................................................................25
6.0
MECHANICAL INFORMATION ...................................................................................................26
7.0
DESIGN MATERIALS .....................................................................................................................27
