User's Manual

ManualsBrandsLeapFrog Enterprises ManualsElectronics2.4GHZ SDIO Module

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USER MANUAL

WN7911C-LF

8

Core buck regulator: Battery voltage input

26 GPIO_2 Signal

I/O General-purpose interface pins.

27 GND Power

I Ground

28 SDIO_CLK Signal

I/O SDIO clock

29 GPIO_3 Signal

I/O General-purpose interface pins.

30 SDIO_DATA_0 Signal

I/O SDIO data line 0

31 GPIO_1 Signal

I/O General-purpose interface pins.

32 SDIO_DATA_1 Signal

I/O SDIO data line 1

33 SDIO_DATA_2 Signal

I/O SDIO data line 2

34 GPIO_9 Signal

I/O General-purpose interface pins.

35 RESETn Signal

I

Low asserting global chip reset: digital input

pin.

Used by PMU to enable/disable power the

internal regulators.

36 SDIO_CMD Signal

I/O SDIO command line

37 SDIO_DATA_3 Signal

I/O SDIO data line 3

38 VDDIO Power

I

Digital I/O supply (1.8V to 3.3V)

VDDIO should be supplied externally;

SDIO I/O supply (1.8V to 3.3V)

39 GND Power

I Ground

40 VDD_PLL Power

I

1.2V supply for PLL;

1.2V crystal oscillator filtered power supply

41 GND Power

I Ground

42 VDD_RADIO_PLL_I Power

I

1.2V supply for radio transmit and receive

sections

43 GND Power

I Ground

44 GND Power

I Ground