Download ALTPLL (Phase-Locked Loop) IP Core User Guide

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2014.08.18
ALTPLL Parameters
Parameter
Type
53
Description
M
Integer Specifies the modulus for the M counter. Provides direct
access to the internal PLL parameters. If the M parameter
is specified, all advanced parameters must be used. Values
range from 1 to 512. If omitted, the default is 0.
M_INITIAL
Integer Specifies the initial value for the M counter. Provides direct
access to the internal PLL parameters. If the M_INITIAL
parameter is specified, all advanced parameters must be
used. Values range from 0 to 512. If omitted, the default
is 0.
M_PH
Integer Specifies the phase tap for the M counter. Values range
from 0 to 7. If omitted, the default is 0.
M_TEST_SOURCE
Integer Specifies the test source for the M counter. If omitted,
default is 5.
M_TIME_DELAY
Integer Specifies, in nanoseconds (ns), the time delay for the M
counter. Values range from 0 ns through 3 ns. If omitted,
the default is 0. This parameter is not available for Cyclone
II and Stratix II devices.
M2
Integer Specifies the spread spectrum modulus for the M counter.
Provides direct access to the internal PLL parameters. If
the M2 parameter is specified, all advanced parameters must
be used. Values range from 1 to 512. If omitted, the value
is 1.
N
Integer Specifies the modulus for the N counter. Provides direct
access to the internal PLL parameters. If the N parameter
is specified, all advanced parameters must be used. Values
range from 1 to 512. If omitted, the default is 1.
N_TIME_DELAY
Integer Specifies, in nanoseconds (ns), the time delay for the N
counter. Values range from 0 ns through 3 ns. If omitted,
the default is 0. This parameter is not available for
Cyclone II and Stratix II devices.
N2
Integer Specifies the spread spectrum modulus for the N counter.
Provides direct access to the internal PLL parameters. If
the N2 parameter is specified, all advanced parameters must
be used. Values range from 1 through 512. If omitted, the
default is 1.
ALTPLL (Phase-Locked Loop) IP Core User Guide
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