Interfaces
15
LEC-BTS
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)
S26
SDMMC_D0 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P26
GBE_MDI1- (Bi-directional transmit/
receive pair 1 to magnetics [Media
Dependent Interface])
S27
SDMMC_D1 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P27
G (Bi-directional transmit/
receive pair 1 to magnetics [Media
Dependent Interface])
S28
SDMMC_D2 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P28
GBE_CTREF(Center-Tap reference
voltage for GBE0 Carrier board Ethernet
magnetic [if required by the Module GBE
PHY])
S29
SDMMC_D3 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P29
GBE0_MDI0- (Bi-directional transmit/
receive pair 0 to magnetics [Media
Dependent Interface])
S30
SDMMC_D4 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P30
GB (Bi-directional transmit/
receive pair 0 to magnetics [Media
Dependent Interface])
S31
SDMMC_D5 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P31
Not connected
S32
SDMMC_D6 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P32
GND
S33
SDMMC_D7 (bidirectional, 8-bit data path;
may
be used for 4- and 1-bit wide eMMC
devices as well)
P33
SDIO_WP (SDIO card Write Protect; 10K
pull-up to 3.3V)
S34
GND
P34
SDIO_CMD (SDIO card Command line)
S35
SDMMC_CK (clock)
P35
SDIO_CD# (SDIO Card Detect; 10K pull-
up to 3.3V)
S36
SDMMC_CMD (command line)
P36
SDIO_CK (SDIO card Clock)
S37
SDMMC_RST# (Reset signal to eMMC
device)
P37
SDIO_PWR_EN (SDIO card Power
Enable)
S38
Not connected
P38
GND
S39
I2S0_LRCK (Left & Right audio
synchronization clock)
P39
SDIO_D0 (SDIO card 4-bit data path)
S40
I2S0_SDOUT (Digital audio output)
P40
SDIO_D1 (SDIO card 4-bit data path)
S41
I2S0_SDIN (Digital audio input)
P41
SDIO_D2 (SDIO card 4-bit data path)
S42
I2S0_CK (Digital audio clock)
P42
SDIO_D3 (SDIO card 4-bit data path)
S43
Not connected
P43
Not connected
S44
Not connected
P44
Not connected
S45
Not connected
P45
Not connected
S46
Not connected
P46
Not connected
S47
GND
P47
GND
S48
I2C_GP_CK (I2C General Purpose clock
signal)
P48
S (Differential SATA 0 transmit
data Pair; 0.1 uF 0402 capacitor on
module)
S49
I2C_GP_DAT I2C (General Purpose data
signal)
Table 3-2: SMARC P-S Connector (GF1) Signal Descriptions (Continued)
Pin #
Primary (Top Side)
Pin #
Secondary (Bottom Side)