Altera I/O Buffer (ALTIOBUF) IP Core Manual do Utilizador descarregar pdf (Página 22)

Name Required Type Description

USE_DIFFERENTIAL_MODE No String Specifies whether the output buffer

mode is differential. Values are TRUE

and FALSE. When set to TRUE, both the

dataout and dataout_b ports are

used. If omitted, the default is FALSE.

Currently, ENABLE_BUS_HOLD and USE_

DIFFERENTIAL_MODE cannot be used

simultaneously.

OPEN_DRAIN_OUTPUT No String Open drain mode. Values are TRUE and

FALSE. If omitted, the default is FALSE.

Note: Currently, OPEN_DRAIN_

OUTPUT and USE_DIFFEREN-

TIAL_MODE cannot be used

simultaneously.

USE_TERMINATION_CONTROL No String Specifies series termination control

and parallel termination control.

Values are TRUE and FALSE. If omitted,

the default is FALSE. When this

parameter is used for Arria II GX

devices and the Cyclone series, only

series termination control is available.

Stratix series support both.

USE_OUT_DYNAMIC_DELAY_CHAIN1 No String Specifies whether the output buffer

incorporates a user-driven dynamic

delay chain in the IP core, specifically,

IO_CONFIG and the first output delay

cell. Additional input ports are io_

config_clk, io_config_clkena, io_

config_update, and io_config_

datain. Values are TRUE and FALSE. If

omitted, the default is FALSE.

USE_OUT_DYNAMIC_DELAY_CHAIN2 No String Specifies whether the output buffer

incorporates a user-driven dynamic

delay chain in the IP core, specifically,

IO_CONFIG and the second output

delay cell. Additional input ports are

io_config_clk, io_config_clkena,

io_config_update, and io_config_

datain. Values are TRUE and FALSE.

If omitted, the default is FALSE.

ALTIOBUF Signals and Parameters: As Output Buffer

UG-01024

2014.12.15

Altera Corporation

I/O Buffer (ALTIOBUF) IP Core User Guide

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