ARMV4T datasheet(17/30 Pages) ACTEL

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CoreMP7

v2.6

read

This command causes the BFM to perform a read of a

specified offset, within the memory map range of a

specified system resource.

Syntax

read width resource_name byte_offset;

width

This takes on the enumerated values of W, H, or B, for

word, halfword, or byte.

resource_name

This is a string containing the user-friendly instance

name of the resource being accessed, as defined by the

user in the memory map (when input to CoreConsole).

byte_offset

This is the offset from the base of the resource, in bytes.

It is specified as a hexadecimal value.

Example

read W videoCodec 20;

readcheck

This command causes the BFM to perform a read of a

specified offset, within the memory map range of a

specified system resource, and to compare the read value

with the expected value provided.

Syntax

readcheck width resource_name byte_offset data;

width

This takes on the enumerated values of W, H, or B, for

word, halfword, or byte.

resource_name

This is a string containing the user-friendly instance

name of the resource being accessed, as defined by the

user in the memory map (when input to CoreConsole).

byte_offset

This is the offset from the base of the resource, in bytes.

It is specified as a hexadecimal value.

data

This is the expected read data. It is specified as a

hexadecimal value.

Example

readcheck W videoCodec 20 11223344;

poll

This command continuously reads a specified location

until a requested value is obtained. This command allows

one or more bits of the read data to be masked out. This

allows, for example, poll waiting for a ready bit to be set,

while ignoring the values of the other bits in the location

being read.

Syntax

poll width resource_name byte_offset data_bitmask;

width

This takes on the enumerated values of W, H, or B, for

word, halfword, or byte.

resource_name

This is a string containing the user-friendly instance

name of the resource being accessed.

byte_offset

This is the offset from the base of the resource, in bytes.

It is specified as a hexadecimal value.

bitmask

The bitmask is ANDed with the read data and the result

is then compared to the bitmask itself. If equal, then all

the bits of interest are at their required value and the

poll command is complete. If not equal, then the polling

continues.

wait

This command causes the BFM script to stall for a

specified number of clock periods.

Syntax

wait num_clock_ticks;

num_clock_ticks

This is the number of CoreMP7 clock periods, during

which

the

BFM

stalls

(doesn't

initiate

any

bus

transactions).

waitfiq

This command causes the BFM to wait until an interrupt

event (high to low transition) is seen on the nFIQ pin

before proceeding with the execution of the remainder

of the script.

Syntax

waitfiq;

waitirq

This command causes the BFM to wait until an interrupt

event (high to low transition) is seen on the nIRQ pin

before proceeding with the execution of the remainder

of the script.

Syntax

waitirq;

Supported Simulation Tools

BFM is delivered to the user as both a Verilog and VHDL

model.

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