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• The RUNTEST command containing run_count and
specifying min_time is executed at the currently
running TCK frequency. Therefore the command can
take much more time than what is specified in
min_time.
• The RUNTEST command containing run_count and
specifying max_time is executed at the currently
running TCK frequency. As the programmer cannot
respect the “deadline” specified in the max_time
parameter, this parameter is ignored.
8.2.6 VPP PRESTO / P
FORTE pin usage
while running test
(file) / after test
completion
The selection of the VPP / P pin function: TRST or SCK as
described in the SVF file or user-defined output levels.
(This is useful to keep the device in the reset state during
file execution.)
8.2.7 Default Settings
The JTAG Player features several default settings intended
primarily for use in connection with FORTE, but not with
PRESTO. Feel free to change these settings if the default
values do not suit your application.
Default Settings for FPGAs
Default TCK frequency: 15MHz; Ignore FREQUENCY
commands
Fast Clock Option (FORTE only): 5MHz and above
RUNTEST without run_count (SVF only): default
speed clock on TCK
RUNTEST timing multiply (both SVF and XSVF): 0%
RUNTEST with run_count and no timing (both SVF
and XSVF): interpret as RUNTEST min_time with scale
1MHz
VPP PRESTO / P FORTE pin usage while running test
(file): Tristate
VPP PRESTO / P FORTE pin usage after test
completion: Tristate
Default Settings for XC9500
Default TCK frequency: 5MHz; Ignore FREQUENCY
commands
Fast Clock Option (FORTE only): 5MHz and above
RUNTEST without run_count (SVF only): slow clock
on TCK (~100kHz)
RUNTEST timing multiply (both SVF and XSVF):
100%
RUNTEST with run_count and no timing (both SVF
and XSVF): interpret as RUNTEST min_time with scale
1MHz
VPP PRESTO / P FORTE pin usage while running test
(file): Tristate
VPP PRESTO / P FORTE pin usage after test
completion: Tristate
Default Settings for AVR:
Default TCK frequency: 1MHz; Ignore FREQUENCY
commands
Fast Clock Option (FORTE only): 5MHz and above
RUNTEST without run_count (SVF only): default
speed clock on TCK