Raptor:DMA Address Space Trigger

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Raptor™ Raptor DMA Address Space Trigger

Description

This block is used with the raptor_j1939_dma_AS_def block to trigger action to be taken when an operation is requested on the custom address space. This block will execute its function call subsystem whenever a read, write or erase is requested in the custom address space for the pointers specified. Multiple address space triggers can be used for a single custom address space.

Inputs

Input	Type	Description

Outputs

Output	Type	Description
Fn Call	function call	Trigger indicating a DMA request has been received for the address space.
Operation	uint8	Requested operation.
Pointer	uint32	Address space pointer for the received reqeust.
Length	uint16	Length of data.
Data	uint8[]	Data received with request.

Parameters

Parameter	Type	Description
Address Space Name	String	This is the name of address space being defined.
Pointer Address(es)	uint32[]	The pointer addresses that will be handled by this trigger block. A vector can be specified to handle multiple pointer addresses with the same trigger block.
Bytes per Item	uint32[]	Specifies the number of bytes for each item handled by this block. This may be a vector, or a scalar. If a scalar is used then all pointer addresses handled by this block will have the same size.
Read Level(s)	uint8[]	Specifies the read user level for each item handled by this block. This may be a vector, or a scalar. If a scalar is used then all pointer addresses handled by this block will have the same read user level.
Write Level(s)	uint8[]	Specifies the write user level for each item handled by this block. This may be a vector, or a scalar. If a scalar is used then all pointer addresses handled by this block will have the same write user level.