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AEROFLEX GAISLER
23.3
167
GRIP
Configuration options
Table 170 shows the configuration options of the core (VHDL generics).
Table 170.Configuration options
Generic name
Function
Allowed range
Default
tech
Target technology
0 - NTECH
inferred
clk_mul
Clock multiplier, used in clock scaling. Not all techbologies support clock scaling.
1
clk_div
Clock divisor, used in clock scaling. Not all technologies
support clock scaling.
1
sdramen
When this generic is set to 1 the core will generate a
clock on the SDCLK. Not supported by all technologies.
See technology specific description.
0
noclkfb
When this generic is set to 0 the core will use the
CGI.PLLREF input as feedback clock for some technologies. See technology specific description.
1
pcien
When this generic is set to 1 the PCI clock is activated.
Otherwise the PCICLKIN input is typically unused. See
technology specific descriptions.
0
pcidll
When this generic is set to 1, a DLL will be instantiated
for the PCI input clock for some technologies. See the
technology specific descriptions.
0
pcisysclk
When this generic is set to 1 the clock generator will use
the pciclkin input as the main clock reference. This also
requires generic pcien to be set to 1.
0
freq
Clock frequency in kHz
25000
clk2xen
Enables 2x clock output. Not available in all technolgies
and may have additional options. See technology specific
description.
0
clksel
Enable clock select. Not available in all technologies.
0
clk_odiv
ProASIC3 output divider. Only used in ProASIC3 technology.
0