Critical Link, LLC
www.CriticalLink.com
MityARM-335x Development Kit
www.MityDSP.com
12 April 2013
12
Copyright © 2007-2013, Critical Link LLC
HDMI Interface
– J400
The MityARM-335x Development Kit provides a 19-pin standard HDMI connector with
video only, J400. Supporting HDMI 1.3, the MityARM-335x can output up to a
resolution of 2048 x 2048 pixels.
Table 5: J400 Connector Pin Assignments
Pin
Signal
Type
Standard
Notes
1
TMDS Data2+
O
2
Shield
Power
3
TMDS Data2-
O
4
TMDS Data1+
O
5
Shield
Power
6
TMDS Data1-
O
7
TMDS Data0+
O
8
Shield
Power
9
TMDS Data0-
O
10
TMDS Clock+
O
11
Shield
Power
12
TMDS Clock-
O
13
Reserved (CEC)
-
14
Reserved
-
15
Reserved (DDC Data/SDA)
-
16
Reserved (DDC Clock/SCL)
-
17
GND
Power
18
+5.0V
Power
19
Hot Plug Detect
O
Expansion Port Interface
– J700
The MityARM-335x Development Kit provides a single 41-pin general expansion
connector on the bottom of the board. A Hirose DF9-41P-1V(32) connector is used and
mates with a Hirose DF9A-41S-1V(22) (or equivalent) connector.
This expansion interface can be used for many different add-on cards due to it having
I2C, SPI and 16 General Purpose Memory Controller (GPMC) Address/Data pins with
control signals directly from the MityARM-335x module. Two 3.3V Supply pins are
provided on the connector as well as a 1.8V connection from the MityARM-335x module
itself.
In addition to custom user interfacing Critical Link provides off-the-shelf add-on
modules for this port that include an 802.11 b/g/n with Bluetooth module.
Table 6 provides signal descriptions for each pin.
