ADLINK Technology LEC-BTS Technical Reference page 21

Table 3-2: SMARC P-S Connector (GF1) Signal Descriptions (Continued)
Pin # Primary (Top Side)
P25 GBE_LINK_ACT# (Link / Activity
Indication LED Driven low on Link [10,
100 or 1000 mbps] Blinks on Activity; able
to sink 24mA or more Carrier LED
current)
P26 GBE_MDI1- (Bi-directional transmit/
receive pair 1 to magnetics [Media
Dependent Interface])
P27 GBE_MDI1+ (Bi-directional transmit/
receive pair 1 to magnetics [Media
Dependent Interface])
P28 GBE_CTREF(Center-Tap reference
voltage for GBE0 Carrier board Ethernet
magnetic [if required by the Module GBE
PHY])
P29 GBE0_MDI0- (Bi-directional transmit/
receive pair 0 to magnetics [Media
Dependent Interface])
P30 GBE0_MDI0+ (Bi-directional transmit/
receive pair 0 to magnetics [Media
Dependent Interface])
P31 Not connected
P32
GND
P33 SDIO_WP (SDIO card Write Protect; 10K
pull-up to 3.3V)
P34 SDIO_CMD (SDIO card Command line)
P35 SDIO_CD# (SDIO Card Detect; 10K pull-
up to 3.3V)
P36 SDIO_CK (SDIO card Clock)
P37 SDIO_PWR_EN (SDIO card Power
Enable)
P38 GND
P39 SDIO_D0 (SDIO card 4-bit data path)
P40 SDIO_D1 (SDIO card 4-bit data path)
P41 SDIO_D2 (SDIO card 4-bit data path)
P42 SDIO_D3 (SDIO card 4-bit data path)
P43 Not connected
P44 Not connected
P45 Not connected
P46 Not connected
P47 GND
P48 SATA0_TX+ (Differential SATA 0 transmit
data Pair; 0.1 uF 0402 capacitor on
module)
Interfaces
Pin # Secondary (Bottom Side)
S26 SDMMC_D0 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S27 SDMMC_D1 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S28 SDMMC_D2 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S29 SDMMC_D3 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S30 SDMMC_D4 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S31 SDMMC_D5 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S32 SDMMC_D6 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S33 SDMMC_D7 (bidirectional, 8-bit data path;
may be used for 4- and 1-bit wide eMMC
devices as well)
S34 GND
S35 SDMMC_CK (clock)
S36 SDMMC_CMD (command line)
S37 SDMMC_RST# (Reset signal to eMMC
device)
S38 Not connected
S39 I2S0_LRCK (Left & Right audio
synchronization clock)
S40 I2S0_SDOUT (Digital audio output)
S41 I2S0_SDIN (Digital audio input)
S42 I2S0_CK (Digital audio clock)
S43 Not connected
S44 Not connected
S45 Not connected
S46 Not connected
S47 GND
S48 I2C_GP_CK (I2C General Purpose clock
signal)
S49 I2C_GP_DAT I2C (General Purpose data
signal)
LEC-BTS
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