Data Sheet

12
29
NC
No connect to gold fingers.
Floating
-
30
NC
No connect to gold fingers.
Floating
-
31
NC
No connect to gold fingers.
Floating
-
32
GND
Ground.
GND
-
33
NC
No connect to gold fingers.
Floating
-
34
NC
No connect to gold fingers.
Floating
-
35
GND
Ground.
GND
-
36
NC
No connect to gold fingers.
Floating
-
37
NC
No connect to gold fingers.
Floating
-
38
GND
Ground.
GND
-
39
NC
No connect to gold fingers.
Floating
-
40
NC
No connect to gold fingers.
Floating
-
41
GND
Ground.
GND
-
42
GPIO0
GPIO
Input/Output
VIO
43
HOST_WAKE
Host-to-SoC Wakeup (input)
input
1.8V
44
SD_VIO
I/O SDIO Power Supply
VCC
-
45
PDN
Full Power-Down (active low)
0 = full power-down mode
1 = normal mode
• Connect to power-down pin of host or 3.3V
• External host required to drive this pin high for normal
operation
• No internal pull-up on this pin.
VCC
3.3V/1.8V
46
GPIO1
GPIO
Input/Output
VIO
47
SDIO DAT3
SDIO 4-bit Mode: Data line Bit[3]
SDIO 1-bit Mode: Reserved
SDIO SPI Mode: Card select (active low)
Input/Output
SD_VIO
48
SDIO DAT2
SDIO 4-bit Mode: Data line Bit[2] or read wait (optional)
SDIO 1-bit Mode: Read wait (optional)
SDIO SPI Mode: Reserved
Input/Output
SD_VIO
49
SDIO DAT1
SDIO 4-bit Mode: Data line Bit[1]
SDIO 1-bit Mode: Interrupt
SDIO SPI Mode: Interrupt
SDO is tristate when SCSn is inactive.
Enables multiple devices driving SDO line.
Input/Output
SD_VIO
50
SDIO DAT0
SDIO 4-bit Mode: Data line Bit[0]
SDIO 1-bit Mode: Data line
SDIO SPI Mode: Data output
Input/Output
SD_VIO
51
SDIO CMD
SDIO 4-bit Mode: Command/response (input/output)
SDIO 1-bit Mode: Command line
SDIO SPI Mode: Data input
USB Mode: USB_VBUS_ON (input)
Input/Output
SD_VIO
52
SDIO CLK
SDIO 4-bit Mode: Clock input
SDIO 1-bit Mode: Clock input
SDIO SPI Mode: Clock input
Input
SD_VIO
53
NC
No connect to gold fingers.
Floating
-