EP4CGX75DF27C7N Altera, EP4CGX75DF27C7N Datasheet - Page 361

• Manufacturer Part Number: EP4CGX75DF27C7N
• Description: Cyclone IV GX
• Manufacturer: Altera
• Series: CYCLONE® IV GXr

Specifications of EP4CGX75DF27C7N

• Number Of Logic Elements/cells: 73920
• Number Of Labs/clbs: 4620
• Total Ram Bits: 4257792
• Number Of I /o: 310
• Number Of Gates: -
• Voltage - Supply: 1.16 V ~ 1.24 V
• Mounting Type: *
• Operating Temperature: 0°C ~ 85°C
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Chapter 1: Cyclone IV Transceivers Architecture
Transceiver Top-Level Port Lists
Table 1–27. Receiver Ports in ALTGX Megafunction for Cyclone IV GX (Part 2 of 3)
© December 2010 Altera Corporation
RX PCS
Block
rx_rmfifofull
rx_rmfifoempty
rx_ctrldetect
rx_errdetect
rx_disperr
rx_runningdisp
rx_enabyteord
rx_byteorder
alignstatus
rx_dataout
rx_clkout
Port Name
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output Clock signal
Input/
Input
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Asynchronous signal
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Synchronous to tx_clkout (non-
bonded modes) or coreclkout
(bonded modes)
Clock Domain
Rate match FIFO full status indicator.
■
■
Rate match FIFO empty status indicator.
■
■
8B/10B decoder control or data identifier.
■
■
8B/10B code group violation or disparity error indicator.
■
■
8B/10B disparity error indicator.
■
8B/10B current running disparity indicator.
■
■
Enable byte ordering control
■
Byte ordering status indicator.
■
Parallel data output from the receiver to the FPGA fabric.
■
FPGA fabric-receiver interface clock when rate match FIFO
is not used.
A high level indicates the rate match FIFO is full.
Driven for a minimum of two serial clock cycles in
configurations without a byte serializer and a minimum
of three recovered clock cycles in configurations with a
byte serializer.
A high level indicates the rate match FIFO is empty.
Driven for a minimum of two serial clock cycles in
configurations without a byte serializer and a minimum
of three recovered clock cycles in configurations with a
byte serializer.
A high level indicates received code group is a /Kx.y/
control code group.
A low level indicates received code group is a /Dx.y/ data
code group.
A high level indicates that a code group violation or
disparity error was detected on the associated received
code group.
Use with the rx_disperr signal to differentiate
between a code group violation or a disparity error as
follows:[rx_errdetect:rx_disperr]



A high level indicates that a disparity error was detected
on the associated received code group.
A high level indicates a positive current running disparity
at the end of the decoded byte
A low level indicates a negative current running disparity
at the end of the decoded byte
A low-to-high transition triggers the byte ordering block
to restart byte ordering operation.
A high level indicates that the byte ordering block has
detected the programmed byte ordering pattern in the
least significant byte of the received data from the byte
deserializer.
Bus width depends on channel width multiplied by
number of channels per instance.
2'b00—no error
2'b10—code group violation
2'b11—disparity error or both
Cyclone IV Device Handbook, Volume 2
Description
1–81