Altera Avalon Verification IP Suite - Manual (Page 137)

Chapter 3: External Memory BFM 3–5
Application Program Interface
May 2011 Altera Corporation Avalon Verification IP Suite User Guide
Application Program Interface
This section describes the API for the external memory BFM.
fill()
read()
signal_api_call
write()
Prototype: fill() .
Arguments: logic[DATA_W-1:0] data .
bit[DATA_W-1:0] increment .
bit[CDT_ADDRESS_W-1:0] address low .
bit[CDT_ADDRESS_W-1:0] address high .
Returns: void .
Description: Overwrites the memory content at the starting address specified by address_low until
the ending address specified by address_high . The data field indicates the data value.
The increment field indicates the data value increment from one address to the next
address. For example, fill ( data[1] , increment[2] , address_low[10] ,
address_high[12] ) fills the memory as follows:
■ memory[address=10] is filled with data value 1
■ memory[address=11] is filled with data value 3
■ memory[address=12] is filled with data value 5
Prototype: read() .
Arguments: bit[CDT_ADDRESS_W-1:0] address .
Returns: logic[DATA_W-1:0] .
Description: Retrieves the memory content from an address you specify.
Prototype: signal_api_call .
Arguments: None.
Returns: void.
Description: Triggers when a client make an API call.
Prototype: write() .
Arguments: bit[CDT_ADDRESS_W-1:0] address .
logic[DATA_W-1:0] data .
Returns: void.
Description: Overwrites the memory content at an address you specify.