External memory bfm, External memory bfm -1 – Altera Avalon Verification IP Suite User Manual
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13
External Memory BFM
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You can use external memory BFMs to verify the following aspects of external memory interfaces:
• Read and write operations
• Memory initialization
Figure 13-1: Usage of External Memory BFM with Tri-State Components
The following figure shows how to use the external memory BFM with tri-state components.
Altera FPGA
M
M
M
Nios II
Processor
TCM
S
TCM
Generic Tristate
Controller
(SDRAM)
TCM
TCS
Tristate
Conduit
Pin
Sharer
Avalon-MM Master
Avalon-MM Slave
TCM
TCS
Tristate
Conduit
Bridge
Generic Tristate
Controller
(Flash
memory)
S
S
TCS
External
Memory
BFM
(SDRAM)
TCS
TCS
TCM
Avalon-TC Master
Avalon-TC Slave
TCS
TCS
Tristate
Conduit
Inverse
Pin
Sharer
TCM
TCM
External
Memory
BFM
(Flash memory)
Printed Circuit Board
Virtual Connection
Virtual Connection
Table 13-1: External Memory BFM and Related Components
Description
Component
Represents the external RAM. The external memory BFM is a memory
model with an Avalon-TC interface. The BFM also models a set of
memories that are supported by the generic tri-state controller
component.
External memory BFM
Converts Avalon-TC signals into conduit signals.
Tri-State Conduit Bridge
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