User Manual

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© 2014 Premier Farnell plc. All Rights Reserved
• GPIO3_21 has a 24.576 MHZ clock on it.
o This is required by the HDMI Framer for Audio purposes. We needed to
run a clock into the processor to generate the correct clock frequency.
The pin on the processor was already routed to the expansion header. In
order not to remove this feature on the expansion header, it was left
connected. In order to use the pin as a GPIO pin, you need to disable the
clock. While this disables audio to the HDMI, the fact that you want to
use this pin for something else, does the same thing.
4.2 element14 BeagleBone Black Features and Specification
This section covers the specifications and features of the board and provides a high
level description of the major components and interfaces that make up the board.
Table 1 provides a list of the features.
Table 1 element14 BeagleBone Black Features
Fe
a
t
u
re
s
Processor
Sitara AM3358BZCZ100
1GHz, 2000 MIPS
G
r
ap
h
ics
E
ngine
SGX530 3D, 20M Polygons/S
SDRAM Memory
512MB DDR3L 800MHZ
O
nboa
r
d
Flash
4GB, 8bit Embedded MMC
PMIC
TPS65217C PMIC regulator and one additional LDO.
Debug Support
O
p
ti
o
n
al
O
n
boar
d
20
-
p
in
C
T
I
J
T
A
G
,
Se
r
ial
He
ad
er
Power Source
miniUSB USB or DC
Jack
5VDC External Via Expansion
Header
PCB
3.4” x 2.1”
6 layers
Indicators
1-Power, 2-Ethernet, 4-User Controllable LEDs
HS
U
S
B
2
.0
C
l
ient
P
o
r
t
A
c
c
e
s
s
to
U
S
B
0
,
C
li
e
n
t
m
od
e
v
ia
m
i
n
i
USB
HS USB 2.0 Host Port Access to USB1, Type A Socket, 500mA LS/FS/HS
Serial Port UART0 access via 6 pin 3.3V TTL Header. Header is populated
Ethernet
10/100, RJ45
S
D/
M
M
C
C
o
nne
c
t
or
m
ic
ro
SD
,
3
.
3
V
User Input
Reset Button
Boot Button
Power Button
Video Out
16b HDMI, 1280x1024 (MAX)
1024x768,1280x720,1440x900 ,1920x1080@24Hz w/EDID Support
A
u
dio
Via HDMI Interface, Stereo
Expansion Connectors
P
o
w
er
5
V,
3
.
3
V
,
VDD
_
A
D
C
(1
.
8
V)
3.3V I/O on all signals
McASP0, SPI1, I2C, GPIO(69 max), LCD, GPMC, MMC1, MMC2, 7
AIN (1.8V MAX) , 4 Timers, 4 Serial Ports, CAN0,
EHRPWM(0,2),XDMA Interrupt, Power button, Expansion Board ID
(Up to 4 can be stacked)
Weight 1.4 oz (39.68 grams)
P
o
w
er
Refer to Section 6.1.7