Altera Quartus II Scripting Manual de usuario descargar pdf (Pagina 544)

100

101

3–414 Chapter 3: Tcl Packages & Commands

sta

The -type option returns a string indicating the type of delay that this point represents in the path.

Possible return values for -type are:

Example

# Define a few helper procedures to print out points

# on a path, and the path itself

proc get_clock_string { path clk } {

set clk_str ""

set clk_id [ get_path_info $path -${clk}_clock ]

if { $clk_id ne "" } {

set clk_str [ get_clock_info $clk_id -name ]

if { [ get_path_info $path -${clk}_clock_is_inverted ] } {

append clk_str " (INVERTED)"

Value Description

(empty) Unknown transition

r Rising output

f Falling output

rr Rising input, rising output

rf Rising input, falling output

fr Falling input, rising output

ff Falling input, falling output

Value Description

cell Cell delay

clknet Lumped clock network delay

clksrc Clock source. Used to ensure that the end-point of a clock segment is marked in the

path when source latency is specified, or when the actual path cannot be found.

comp PLL clock network compensation delay

ic Interconnect delay

iext External input delay

latch Clock latch time

launch Clock launch time

loop Lumped combinational loop delay

oext External output delay

re Routing element (only for paths generated with the -show_routing option)

srclat Source latency for a clock segment. This will appear if latency was specified between

two clocks, or if a path could not be found between them.

unc Clock uncertainty

utco Register micro-Tco time

utsu Register micro-Tsu time

uth Register micro-Th time

1 2 ... 539 540 541 542 543 544 545 546 547 548 549 ... 633 634

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