Altera Stratix GX Transceiver User Manual

Page 309

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Altera Corporation

B–13

January 2005

Stratix GX Transceiver User Guide

VOD_CTRL_SETTING

Integer

No

Specifies, in mV, the value of the V

O D

control signal.

Values are

400

,

800

,

1000

,

1200

,

1400

,

1600

. If

omitted, the default is

1000

.

USE_PREEMPHASIS_

CTRL_SIGNAL

String

No

Specifies whether the pre-emphasis control signal is
used. If you enable this parameter, the

tx_preemphasisctrl

port is used and the

PREEMPHASIS_CTRL_SETTING

parameter is

ignored. Values are

ON

and

OFF

. If omitted, the default

is

OFF

.

PREEMPHASIS_CTRL_

SETTING

Integer

No

Specifies, as a percentage of the V

O D

control setting,

the value of the pre-emphasis control signal. Values
are

0

,

1

,

2

,

3

,

4

, or

5

. If omitted, the default is

0

.

USE_RX_CLKOUT

String

No

Specifies whether the output clock from the transceiver
block receiver channel is used. Values are

ON

and

OFF

. If omitted, the default is

OFF

. If you enable this

parameter, the

rx_clkout

port must be used.

USE_RX_CRUCLK

String

No

Specifies whether the clock recovery unit (CRU) is
used for the transceiver block receiver PLL reference
input clock. Values are

ON

and

OFF

. If omitted, the

default is OFF. If you enable this parameter, the

rx_cruclk

port must be used.

RX_PPM_SETTING

Integer

No

Specifies the value of the PPM threshold between the
transceiver block receiver PLL VCO and the clock
recovery unit (CRU). Values are

125

,

250

,

500

, or

1000

. If omitted, the default is

1000

.

RX_FORCE_SIGNAL_

DETECT

String

No

Specifies whether the

rx_signaldetect[]

port is

used. Values are

ON

and

OFF

. If omitted, the default is

ON

.

USE_RX_CORECLK

String

No

Specifies whether the

rx_coreclk[]

port is used.

Values are

ON

and

OFF

. If omitted, the default is

OFF

.

USE_TX_CORECLK

String

No

Specifies whether the

tx_coreclk[]

port is used.

Values are

ON

and

OFF

. If omitted, the default is

OFF

.

FLIP_RX_OUT

String

No

Specifies whether the transceiver block receiver
channel output data bits are flipped. Values are

ON

and

OFF

. If omitted, the default is

OFF

.

FLIP_TX_IN

String

No

Specifies whether the transceiver block transmitter
channel input data bits are flipped. Values are

ON

and

OFF

. If omitted, the default is

OFF

.

INSTANTIATE_

TRANSMITTER_PLL

String

No

Specifies whether the transceiver block transmitter
PLL is instantiated. Values are

ON

and

OFF

. If omitted,

the default is

OFF

.

Table B–3. Parameter Descriptions (Part 5 of 6)

Parameter

Type

Required

Comments

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