XBAR API Specification

Overview

This section describes functions and macros of the driver's API.

Macros
#define	XBAR_Path(inp, outmask)
	Sets XBAR output channels. More...
#define	XBAR_EnableDMA(outmask)
	Enables DMA for XBAR_DMA output. More...
#define	XBAR_Init(cfg0, cfg1, cfg2, cfg3, ip, callback)
	XBAR initialization. More...

Macro Definition Documentation

#define XBAR_Path	(		inp,
			outmask
	)

This macro routes one of the following input channels XBAR Input Channels to one or more the following XBAR Output Channels.

Parameters

inp	Select one of the XBAR Input Channels.
outmask	Select one or more OR'ed XBAR Output Channels.

Note

Implemented as an inline macro.

#define XBAR_EnableDMA

(

outmask

)

This macro enables the DMA function for XBAR_DMA output. Macros sets DEN (DMA enable bit) and clears IEN (interrupt enable bit) for selected outputs.

Parameters

outmask

Select one or more OR'ed XBAR_DMA XBAR Output Channels.

Note

Implemented as an inline macro.

#define XBAR_Init	(		cfg0,
			cfg1,
			cfg2,
			cfg3,
			ip,
			callback
	)

This function initializes Inter-Peripheral Crossbar Switch (XBAR) block. It also installs callback function for interrupt vector 47.

Parameters

cfg0	Select one of the XBAR Configuration Structures for CH0.
cfg1	Select one of the XBAR Configuration Structures for CH1.
cfg2	Select one of the XBAR Configuration Structures for CH2.
cfg3	Select one of the XBAR Configuration Structures for CH3.
ip	Select one of the ARM Cortex-M0+ Interrupt Priority Levels.
callback	Pointer to the XBAR Callback Function.

Note

Implemented as a function call.