Output ports – Altera Stratix GX Transceiver User Manual

Page 301

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Altera Corporation

B–5

January 2005

Stratix GX Transceiver User Guide

Output Ports

Table B–2

lists the output ports of the Stratix GX device.

Table B–2. Output Ports (Part 1 of 4)

Port Name

Required

Description

Comments

pll_locked[]

No

Gives the status of the
transceiver block
transmitter PLL.

Output port [NUMBER_OF_QUADS - 1..0]
wide. The

pll_locked

port is available

only when the transceiver block transmitter
PLL is used. The signal achieves lock
status within several clock cycles in
simulation. This does not necessarily reflect
the real lock time in the hardware, which
can take thousands of cycles for some
settings.

coreclk_out[]

No

Output clock fed by the
clk2 port of the
transceiver block
transmitter PLL.

Output port [NUMBER_OF_QUADS - 1..0]
wide. If a transceiver block transmitter PLL
is used, the

coreclk_out

port must be

enabled.

rx_out[]

Yes

Transceiver block
receiver PLL output
data.

Output port [CHANNEL_WIDTH *
NUMBER_OF_CHANNELS - 1..0] wide. If
you set the

USE_8B_10B_MODE

parameter to

OFF

and the

USE_DOUBLE_DATA_MODE

parameter is

set to

OFF

, the deserialization factor is

CHANNEL_WIDTH

. If you set the

USE_8B_10B_MODE

parameter to

OFF

and the

USE_DOUBLE_DATA_MODE

parameter is set to

ON

, the deserialization

factor is

CHANNEL_WIDTH

/ 2. If you set

the

USE_8B_10B_MODE

parameter to

ON

,

the deserialization factor is 10.

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