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Reset asserted level

Asserted or active level of the reset input signal

Model Configuration Pane: Global Settings

Description

Specify whether the asserted or active level of the reset input signal is active-high or active-low.

Dependencies

If you input a logic high value to the Reset input port, to reset the registers in your design, set Reset asserted level to Active-high. if you input a logic low value to the Reset input port, to reset the registers in your design, set Reset asserted level to Active-low.

Settings

Active-high (default) | Active-low

Default: Active-high

Active-high

Specify that the asserted level of reset input signal is active-high. For example, the following code fragment checks whether reset is active high before populating the delay_pipeline register:

Delay_Pipeline_Process : PROCESS (clk, reset)
BEGIN
  IF reset = '1' THEN
    delay_pipeline(0 TO 50) <= (OTHERS => (OTHERS => '0'));
.
.
.

Active-low

Specify that the asserted level of reset input signal is active-low. For example, the following code fragment checks whether reset is active low before populating the delay_pipeline register:

Delay_Pipeline_Process : PROCESS (clk, reset)
BEGIN
  IF reset = '0' THEN
    delay_pipeline(0 TO 50) <= (OTHERS => (OTHERS => '0'));
.
.
.

Tips

To set this property, use the functions hdlset_param or makehdl. To view the property value, use the function hdlget_param.

For example, you can specify this property while generating HDL code for the symmetric_fir subsystem inside the sfir_fixed model using either of these methods.

  • Use hdlset_param to set the parameter on the model. Then generate HDL code using makehdl.

    hdlset_param('sfir_fixed','ResetAssertedLevel','active-high')
makehdl('sfir_fixed/symmetric_fir')

  • Pass the property as an argument to the makehdl function.

    makehdl('sfir_fixed/symmetric_fir','ResetAssertedLevel','active-high')

Recommended Settings

No recommended settings.

Programmatic Use

Parameter: ResetAssertedLevel
Type: character vector
Value: 'active-high' | 'active-low'
Default: 'active-high'

Version History

Introduced in R2012a

See Also

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