Altera Internal Memory (RAM and ROM) IP Core User Manual
Page 36
Parameter
Legal Values
Description
When you select With one read port and one write
port, the following option is available:
Create a ‘rden’ read enable signal
—
Specifies whether to create a
read enable signal for port B.
When you select With two read/write ports, the
following option is available:
Create a ‘rden_a’ and ‘rden_b’ read enable signal
Specifies whether to create a
read enable signal for port A
and B.
Create byte enable for port A
—
Specifies whether to create a
byte enable for port A and B.
Turn on these options if you
want to mask the input data
so that only specific bytes,
nibbles, or bits of data are
written.
To enable byte enable for
port A and port B, the data
width ratio has to be 1 or 2
for the RAM: 1-PORT and
RAM: 2-PORT IP cores.
The option to create a byte
enable for port B is only
available when you select the
With two read/write ports
option.
Create byte enable for port B
—
Enable error checking and correcting (ECC) to
check and correct single bit errors and detect double
errors
On/Off
Specifies whether to enable
the ECC feature that corrects
single bit errors and detects
double errors at the output
of the memory. This option
is only available in devices
that support M144K memory
block type.
Enable error checking and correcting (ECC) to
check and correct single bit errors, double adjacent
bit errors, and detect triple adjacent bit errors
On/Off
Specifies whether to enable
the ECC feature that corrects
single bit errors, double
adjacent bit errors, and
detects triple adjacent bit
errors at the output of the
memory. This option is only
available in devices that
support M20K memory
block type.
Parameter Settings: Regs/Clkens/Aclrs
UG-01068
2014.12.17
RAM: 2-Port IP Core Parameters
4-11
Embedded Memory Signals and Parameters
Altera Corporation