Critical Link MityARM-335x, Manual

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Critical Link, LLC
www.CriticalLink.com MityARM-335x Development Kit
www.MityDSP.com 12 April 2013
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Copyright © 2007-2013, Critical Link LLC
10/100/1000 Ethernet Interface
– J200
The MityARM-335x Development Kit provides a RJ-45 connection for a Gigabit
10/100/1000 Ethernet connection. This connection follows standard TIA/EIA-568B pin-
out as shown in Table 12 below. The Ethernet PHY will auto negotiate to the speed of the
device it is connected to.
Table 12: J200 Ethernet RJ45 Pin Assignments
Pin Signal Type Standard Notes
1 TXVA_P I/O
2 TXVA_N I/O
3 TXVB_P I/O
4 TXVB_N I/O
5 TXVC_P I/O
6 TXVC_N I/O
7 TXVD_P I/O
8 TXVD_N I/O
Audio Input/Output Interface
– J300 and J301
The MityARM-335x Development Kit provides both an Input, biased microphone, and
Output, L/R stereo speaker connections. The 3.5mm/1/8” connections are through J300
for output and J301 for input with the pin-outs shown below.
Table 13: J300 Audio Output Pin Assignments
Pin Signal Type Standard Notes
Tip Audio Out Left O Unbalanced audio output
Ring Audio Out Right O Unbalanced audio output
Sleeve GND Power Audio Ground
Table 14: J301 Audio Output Pin Assignments
Pin Signal Type Standard Notes
Tip Mic Bias O 2.2V bias from TLV320AIC26
Ring Mic Input I
Sleeve GND Power Audio Ground