Altera I/O Buffer (ALTIOBUF) IP Core Manual do Utilizador descarregar pdf (Página 26)

Name Required Description

parallelterminationcontrol_b No Receives the current state of the pull up and pull

down Rt control buses from a termination logic

block. Input port [((WIDTH_PTC * NUMBER_OF_

CHANNELS) - 1)..0] wide. Port is applicable only

when the USE_TERMINATION_CONTROL parameter

value is TRUE.

Table 13: ALTIOBUF (As Bidirectional Buffer) Output Ports

This table lists the output ports for ALTIOBUF IP core (as bidirectional buffer)

Name Required Description

dataout[] Yes Buffer output port. Output port [NUMBER_OF_

CHANNELS - 1..0] wide. The I/O output buffer

element output.

Table 14: ALTIOBUF (As Bidirectional Buffer) Bidirectional Ports

This table lists the bidirectional ports for ALTIOBUF IP core (as bidirectional buffer)

Name Required Description

dataio[] Yes Bidirectional port that directly feeds a bidirectional

pin in the top-level design. Bidirectional port

[(NUMBER_OF_CHANNELS - 1)..0] wide.

dataio_b[] No Bidirectional DDR port that directly feeds a bidirec‐

tional pin in the top-level design. Bidirectional port

[(NUMBER_OF_CHANNELS - 1)..0] wide. The

negative signal input/output to/from the I/O buffer.

This port is used only if the use_differential_

mode_parameter is set to TRUE.

Table 15: ALTIOBUF (As Bidirectional Buffer) Parameter

This table lists the parameters for ALTIOBUF IP core (as bidirectional buffer)

Name Required Type Description

ENABLE_BUS_HOLD No String Specifies whether the bus hold circuitry is

enabled. Values are TRUE and FALSE.

When set to TRUE, bus hold circuitry is

enabled, and the previous value, instead of

high impedance, is assigned to the output

port when there is no valid input. If

omitted, the default is FALSE.

Currently, ENABLE_BUS_HOLD and USE_

DIFFERENTIAL_MODE cannot be used

simultaneously.

ALTIOBUF Signals and Parameters: As Bidirectional Buffer

UG-01024

2014.12.15

Altera Corporation

I/O Buffer (ALTIOBUF) IP Core User Guide

Send Feedback

1 2 ... 21 22 23 24 25 26 27 28 29 30

Comentários a estes Manuais

Sem comentários

Altera I/O Buffer (ALTIOBUF) IP Core Manual do Utilizador Página 26

Comentários a estes Manuais

Manuais e produtos relacionados com Instrumentos de medida Altera I/O Buffer (ALTIOBUF) IP Core