ADLINK Technology LEC-BT, Техническое описание

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Interfaces 13
LEC-BT
3.15 GPIO
The LEC-BT provides 12 GPIO signals from the PCA9535A GPIO expander on the module. The
GPIO signals can be utilized for General Purpose IOs as well as camera reset, camera power,
and HDA reset.
3.16 AFB (Alternate Function Block)
The module supports certain AFB pins that are dedicated for specific functions. Table 3-2 pro-
vides the map from the AFB signal on the module to its designated function signal on the SoC.
Table 3-1: GPIO Default Settings
SMARC Connector Pin Default Function
GPIO0 CAM0_PWR#
GPIO1 CAM1_PWR#
GPIO2 CAM0_RST#
GPIO3 CAM1_RST#
GPIO4 HDA_RST#
GPIO5 GPIO
GPIO6 GPIO
GPIO7 GPIO
GPIO8 GPIO
GPIO9 GPIO
GPIO10 GPIO
GPIO11 GPIO
Table 3-2:AFB Pin Map to SoC
Pin AFB Signal SoC Signal
S17 AFB0_OUT Intel SoC_PMC_SLP_S3#
S18 AFB1_OUT Intel SoC_PMC_SLP_S4#
S19 AFB2_OUT Intel SoC_PMC_SUS_STAT#
S20 AFB3_IN Not connected
S21 AFB4_IN Not connected
S22 AFB5_IN Not connected
S23 AFB6_PTIO EN_OC# for USB SS on AFB
S24 AFB7_PTIO PCU_SMB_ALERT#
S55 AFB8_PTIO Not connected
S56 AFB9_PTIO Not connected
S62 AF USB3.0_TX+
S63 AFB_DIFF0- USB3.0_TX-
S65 AF USB3.0_RX+
S66 AFB_DIFF1- USB3.0_RX-
S68 AF USB_DP [0]
S69 AFB_DIFF2- USB_DN [0]
S71 AF SATA_TXP [1]
S72 AFB_DIFF3- SATA_TXN [1]
S74 AF SATA_RXP [1]
S75 AFB_DIFF4- SATA_RXN [1]