Altera ALTPLL (Phase-Locked Loop) IP Core User Manual
Page 53
Description
Type
Parameter
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
.
Integer
M
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
.
Integer
M_INITIAL
Specifies the phase tap for the M counter. Values range
from 0 to 7. If omitted, the default is
0
.
Integer
M_PH
Specifies the test source for the
M
counter. If omitted,
default is
5
.
Integer
M_TEST_SOURCE
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.
Integer
M_TIME_DELAY
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
.
Integer
M2
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
.
Integer
N
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.
Integer
N_TIME_DELAY
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
.
Integer
N2
Altera Corporation
ALTPLL (Phase-Locked Loop) IP Core User Guide
53
ALTPLL Parameters
ug-altpll
2014.08.18