Altera MAX 10 Embedded Memory Bedienungsanleitung PDF herunterladen (Seite 43)

Option Legal Values Description

More Option When you select With

one read port and one

write port, the

following options are

available:

• ‘rdaddress’ port

• ‘q_b’ port

When you select With

two read /write ports,

the following options

are available:

• ‘q_a’ port

• ‘q_b’ port

On/Off

Specifies whether the

raddress, q_a, and q_b

ports are cleared by the aclr

port.

Parameter Settings: Output 1

Mixed Port Read-

During-Write for

Single Input

Clock RAM

When you select With

one read port and one

write port, the

following option is

available:

• How should the q

output behave

when reading a

memory location

that is being written

from the other

port?

When you select With

two read /write ports,

the following option is

available:

• How should the q_

a and q_b outputs

behave when

reading a memory

location that is

being written from

the other port?

• Old memory contents

appear

• I do not care (the outputs

will be undefined)

Specifies the output behavior

when read-during-write

occurs.

• Old memory contents

appear— The RAM

outputs reflect the old

data at that address

before the write

operation proceeds.

• I do not care—This

option functions

differently when you turn

it on depending on the

following memory block

type you select:

• When you set the

memory block type to

Auto, or M9K, the

RAM outputs ‘don't

care’ or “unknown”

values for read-

during-write

operation without

analyzing the timing

path.

UG-M10MEMORY

2015.05.04

RAM: 2-Port IP Core Parameters for MAX 10 Devices

5-15

RAM: 2-PORT IP Core References

Altera Corporation

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