Altera I/O Buffer (ALTIOBUF) IP Core Manuale Utente Scaricare il pdf (Pagina 10)

Table 3: ALTIOBUF Parameters: Dynamic Delay Chains Tab

Parameter Description

Enable input buffer dynamic delay chain If enabled, the input or bidirectional buffer incorporates the

user-driven dynamic delay chain in the IP core; that is, the

IO_CONFIG and the input delay cell. Additional input ports are

enabled: io_config_clk, io_config_clkena, io_config_

update, and io_config_datain.

This option is not available for Cyclone III and Cyclone IV

devices.

Enable output buffer dynamic delay chain

If enabled, the output or bidirectional buffer incorporates the

user-driven dynamic delay chain in the IP core; that is, the

IO_CONFIG and the first output delay cell. Additional input

ports are enabled: io_config_clk, io_config_clkena, io_

config_update, and io_config_datain.

This option is not available for Cyclone III and Cyclone IV

devices.

Enable output buffer dynamic delay chain

If enabled, the output buffer or bidirectional buffer incorpo‐

rates a user-driven dynamic delay chain in the IP core; that is,

the IO_CONFIG and the second output delay cell. Additional

input ports are enabled: io_config_clk, io_config_clkena,

io_config_update, and io_config_datain.

This option is not available for Cyclone III and Cyclone IV

devices.

Create a ‘clkena’ port If enabled, there is a port used to control when the configura‐

tion clock is enabled. This option is not available for Cyclone

III and Cyclone IV devices.

Using the Port and Parameter Definitions

Instead of using the parameter editor GUI, you can instantiate the IP core directly in your Verilog HDL,

VHDL, or AHDL code by calling the IP core and setting its parameters as you would any other module,

component, or subdesign.

Related Information

ALTIOBUF References on page 16

ALTIOBUF Functional Description

Using the Port and Parameter Definitions

UG-01024

2014.12.15

Altera Corporation

I/O Buffer (ALTIOBUF) IP Core User Guide

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Altera I/O Buffer (ALTIOBUF) IP Core Manuale Utente Pagina 10