CP2114 datasheet(39/54 Pages) SILABS

39 / 54 page

AN433

Rev. 0.5

5.3. CP2114_GetPinConfig

Description:

Retrieves the GPIO mode configuration for each pin.

Prototype:

HID_UART_STATUS

CP2114_GetPinConfig(HID_UART_DEVICE

device,

BYTE*

pinConfig,

BOOL*

useSuspendValues,

WORD*

suspendValue,

WORD*

suspendMode, BYTE* clkDiv)

Parameters:1.

device—Device object pointer as returned by HidUart_Open().

pinConfig—A pointer to a 14-byte array to store GPIO mode configuration or dedicated

function for each of the 14 pins.

useSuspendValues—Returns the configuration for using the values in suspendValue and

suspendMode when in suspend mode. This bit is the same as bit 15 of suspendMode.

suspendValue—Returns the latch value that will be driven on each GPIO pin when the device

is in a suspend state.

suspendMode—Returns the mode for each GPIO pin when the device is in a suspend state.

clkDiv—Divider applied to GPIO.9_CLKOUT clock output. When 0, the output frequency is

SYSCLK/(2 x 256). For 1–255, the output frequency is SYSCLK/(2 x clkDiv). SYSCLK can be

either 48 MHz or 49.152 MHz depending on the configuration.

Return Value: HID_UART_STATUS

HID_UART_SUCCESS

HID_UART_INVALID_DEVICE_OBJECT

HID_UART_INVALID_PARAMETER

HID_UART_DEVICE_IO_FAILED

HID_UART_DEVICE_NOT_SUPPORTED

CP2114 Datasheet(PDF) 39 Page - Silicon Laboratories