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Parameters

Table 15-1: Custom Instruction Slave BFM Parameter Settings

DescriptionLegal ValuesDefault

Value

Option

General

Specifies the number of operands to use.

• 0: no operands are used.

• 1: use dataa port only.

• 2: use dataa and datab ports.

0,1,22Number of Operands

to Use

Specifies the fixed length for multi-cycle mode.N/A2Fixed Length for Multi-

cycle Mode

Port Enables

When On, the interface includes a result pin.On/OffOnUse Result Port

When On, the interface can include a start pin, a done

pin, both pins, or neither pins. The result returns in

any of the following conditions:

• With a start signal—Result returns together with

an instruction.

• Without a start signal—Result returns with

instruction on the bus at every clock cycle.

• With a done signal—Result returns at any time.

• Without a done signal—Result returns at a fixed

cycle.

On/OffOffUse Multi-cycle Mode

When On, the interface includes a start pin.On/OffOn/Using start port

When On, the interface includes a done pin.On/OffOn/Using done port

When On, the interface includes a n pin.On/OffOffUse Extended Port

Specifies the width of the extended n port.N/A1Extended Port Width

When On, the interface includes the readra and a pins.On/OffOffUse Internal Register a

When On, the interface includes the readrb and b pins.On/OffOffUse Internal Register b

When On, the interface includes the readrc and c pins.On/OffOffUse Internal Register c

Miscellaneous Properties

For VHDL BFMs only. Use this option to assign a

unique number to each BFM in the testbench design.

0–10230VHDL BFM ID

Nios II Custom Instruction Slave BFM

Altera Corporation

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Parameters

15-2

1 2 ... 187 188 189 190 191 192 193 194 195 196 197 ... 223 224

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