Datasheet

Button Header Description:
Button Header
Note:
IntheType/Dircolumn,Outputistobuttonheader.Inputisfrombuttonheader.Bidir
isforbidirectionalsignals.
Fan Connector Pin Description:
Fan Connector
Note:
IntheType/Dircolumn,Outputistofanconnector.Inputisfromfanconnector.Bidir
isforbidirectionalsignals.
21
Pin# PinName Type/DirDefaultModule Usage/Description
1
2
3
4
5
6
7
8
9
10
11
12
–
PC_LED-
:ConnectstoLEDCathodetoindicateSystemSl
eep/Wake(Offwhensysteminsleepmode)
Input,5V
– PC_LED+:Connect stoLEDAnode(seeabove) Output
UART2_RXD(DEBUG) UART#2Receive Input,3.3V
UART2_TXD(DEBUG) UART#2Transmit Output,3.3V
–
ACOK:Connectpins5and6todisableAuto-
Power-Onandrequirepowerbuttonpress.
Input
,3.3V
– AutoPower-ondisable:PulledtoGND.SeePin5. na
– Ground Ground
SYS_RESET* Temporarilyconnectpins7and8to resetsystem Input,1.8V
– Ground Ground
FORCE_RECOVERY*
Connectpins9and10duringpower-
ontoputsysteminUSBForceRecoverymode.
Input,1.8V
– Ground Ground
SLEEP/WAKE*
Connectpins11and12toinitiatepower-
onifAuto-Power-
Ondisabled(Pins5and6connected).
Input,5V
Pin# ModulePinName Usage/Description Type/DirDefault
1
2
3
4
– Ground Ground
– Main5.0VSupply Power
GPIO08 FanTachom etersignal Input,5V
GPIO14 FanPulseWidthModulation signal Output,5V