Writing to the memory, Parameters, Writing to the memory –3 – Altera Avalon Verification IP Suite User Manual
Page 135: Parameters –3
Chapter 3: External Memory BFM
3–3
Parameters
May 2011
Altera Corporation
Avalon Verification IP Suite User Guide
Writing to the Memory
The BFM overwrites its memory content when the BFM asserts the following signals:
■
cdt_write
signal
■
cdt_chip_select
signal
Parameters
lists the parameter settings for the external memory BFM.
Table 3–2. External Memory BFM Parameter Settings (Part 1 of 2)
Option
Default Value
Legal
Values
Description
Port Enables
Use the byteenable signal
On
On/Off
When On, the interface includes a
byteenable
pin to enable specific byte lanes during transfer.
Use the chip select signal
On
On/Off
When On, the interface includes a
chipselect
pin. When present, the slave port ignores all
Avalon-MM signals unless
chipselect
is
asserted.
chipselect
is always present in
combination with
read
or
write
.
Use the write signal
On
On/Off
When On, the interface includes a
write
pin
that enables the write-request signal.
Use the read signal
On
On/Off
When On, the interface includes a
read
pin that
enables the read-request signal.
Use the output enable
signal
On
On/Off
When On, the interface includes an
outputenable
pin.
Use the begintransfer signal
On
On/Off
When On, the interface includes a
begintransfer
pin.
Use the reset input signal
Off
On/Off
When On, the interface includes a
reset
pin.
Use the active low
byteenable signal
Off
On/Off
When On, the interface includes an active low
byteenable
pin.
Use the active low
chipselect signal
Off
On/Off
When On, the interface includes an active low
chipselect_n
pin.
Use the active low write
signal
Off
On/Off
When On, the interface includes an active low
write
_n pin.
Use the active low read
signal
Off
On/Off
When On, the interface includes an active low
read_n
pin.
Use the active low
outputenable signal
Off
On/Off
When On, the interface includes an active low
outputenable_n
pin.
Use the active low
begintransfer signal
Off
On/Off
When On, the interface includes an active low
begintransfer_n
pin.
Use the active low reset
signal
Off
On/Off
When On, the interface includes an active low
reset_n
pin.