Technical data

vcd file

ModelSim EE/PLUS Reference Manual Simulator Command Reference

383

Note that the quotes in the example above are a Tcl convention for command

strings that include spaces.

-direction

Affects only VHDL ports. Optional. It specifies that the variable type recorded in the VCD

header for VHDL ports shall be one of the following:

in, out, inout, internal, ports (includes in, out, and inout); the default is all ports

This option results in a non-standard VCD file, but is necessary if the VCD file is

to be used to stimulate a VHDL design with the

vsim

command (p91) with the

vcdread

option.

Note that the port type is specified with options to the

vcd add

command (p379)

when the VCD file is created.

-dumpports

Capture detailed port driver data for Verilog ports and VHDL std_logic ports. Optional.

This option only works on ports, and subsequent

vcd add

commands (p379) will only

accept qualifying ports (silently ignoring all other specified items). See "Capturing port

driver data with -dumpports" (p498) for more information.