
MYXPM6021*
Revision 1.1 - 10/21/14
*Advanced information. Subject to change without notice.
85
MYXPM6021*
Form #: CSI-D-685 Document 011
15 General Purpose IOs
15.1 Overview
TheMYXPM6021provides16GPIOpinsunderthecontroloftheSoC.ThemajorityoftheseGPIOpinshaveadefault
congurationasCMOSinputswithweak(50KOhm)pulldownsenabled.TheGPIObufferssupportoperationasopen-
drainorpushpulloutputs.Theyaresplitinto2groups,eachwithadifferentxedsupply:
• GPIO0P0–GPIO0P7supportalevelof1.8V
• GPIO1P0–GPIO1P7support3.3V
FollowingarethesupportedfeaturefromthedigitalGPIOIP:
• CMOSorOpenDrainoutputandinputconguration
• 2k-ohmor50k-ohmpull-uporpull-downresistance
• ReadbackofoutputPADvalues
• OutputLevelselectbyregister
• Digitalglitchlterof62μs
• Digitallter(de-bouncer,typically32ms)withprogrammablebypass
• Interruptandinterruptmaskfunctionality.
• Polarityselection(defaultactivehigh)
• Analog/DigitalInput
• Alternateinput/outputfunctionality.
15.2 Analog Block, Control & Data Signals
Figure 38: GPIO Block Diagram
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