EP2AGX95EF29C4N Altera, EP2AGX95EF29C4N Datasheet - Page 401

• Manufacturer Part Number: EP2AGX95EF29C4N
• Description: IC ARRIA II GX FPGA 95K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX95EF29C4N

• Number Of Logic Elements/cells: 89178
• Number Of Labs/clbs: 3747
• Total Ram Bits: 6679
• Number Of I /o: 372
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 780-FBGA
• Family Name: Arria® II GX
• Number Of Logic Blocks/elements: 93674
• # I/os (max): 372
• Frequency (max): 500MHz
• Operating Supply Voltage (typ): 900mV
• Logic Cells: 93674
• Ram Bits: 7025459.2
• Operating Supply Voltage (min): 0.87V
• Operating Supply Voltage (max): 0.93V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 780
• Package Type: FC-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Compliant

Chapter 1: Transceiver Architecture in Arria II Devices
Transmitter Channel Datapath
December 2010 Altera Corporation
w
8B/10B Encoder
Figure 1–14
Figure 1–14. 8B/10B Encoder
The 8B/10B encoder generates 10-bit code groups from the 8-bit data and 1-bit control
identifier. If the tx_ctrlenable input is high, the 8B/10B encoder translates the 8-bit
input data to a 10-bit control word (Kx.y). Otherwise, the 8B/10B encoder translates
the 8-bit input data to a 10-bit data word (Dx.y).
how the second 8'hBC data is encoded as a control word, while the reset of the data
are encoded as a data word.
Figure 1–15. Control Word and Data Word Transmission
The IEEE 802.3 8B/10B encoder specification identifies only a set of 8-bit characters
for which tx_ctrlenable should be asserted. If you assert tx_ctrlenable for any
other set of characters, the 8B/10B encoder might encode the output 10-bit code as an
invalid code (it does not map to a valid Dx.y or Kx.y code), or an unintended valid
Dx.y code, depending on the value entered. It is possible for a downstream 8B/10B
decoder to decode an invalid control word into a valid Dx.y code without asserting
any code error flags. Altera recommends not asserting tx_ctrlenable for
unsupported 8-bit characters.
tx_datain[7:0]
tx_ctrlenable
shows the inputs and outputs of the 8B/10B encoder.
code group
clock
tx_invpolarity
tx_ctrlenable
tx_forcedisp
tx_dispval
FIFO or Byte Serializer
Phase Compensation
Input Data from TX
D3.4
83
D24.3
78
8B/10B Encoder
D28.5
BC
K28.5
BC
Figure 1–15
D15.0
0F
Arria II Device Handbook Volume 2: Transceivers
Output Data to
Serializer (tx_dataout)
D0.0
00
shows an example of
D31.5
BF
D28.1
3C
1–15