EP2AGX65DF29I5N Altera, EP2AGX65DF29I5N Datasheet - Page 258

• Manufacturer Part Number: EP2AGX65DF29I5N
• Description: IC ARRIA II GX FPGA 65K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX65DF29I5N

• Number Of Logic Elements/cells: 60214
• Number Of Labs/clbs: 2530
• Total Ram Bits: 5246
• Number Of I /o: 364
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 780-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

8–18
Figure 8–14. Receiver Datapath in DPA Mode
Notes to
(1) All disabled blocks and signals are grayed out.
(2) In SDR and DDR modes, the data width from the IOE is 1 and 2 bits, respectively.
(3) The rx_out port has a maximum data width of 10 bits.
(4) Arria II GX center/corner PLL or Arria II GZ left/right PLL.
Arria II Device Handbook Volume 1: Device Interfaces and Integration
rx_divfwdclk
rx_outclock
Fabric
FPGA
rx_out
Figure
8–14:
10
DPA Mode
In DPA mode, the DPA circuitry automatically chooses the optimal phase between the
source-synchronous reference clock and the input serial data to compensate for the
skew between the two signals. The reference clock must be a differential signal.
Figure 8–14
serial data into the synchronizer. Use the LVDS_diffioclk clock to read the serial data
from the synchronizer. Use the same LVDS_diffioclk clock in the data realignment
and deserializer blocks.
IOE Supports SDR, DDR, or Non-Registered Datapath
(LOAD_EN, diffioclk)
2
Deserializer
DOUT DIN
shows the DPA mode datapath. Use the DPA_diffioclk clock to write
IOE
2
PLL (4)
(Note
3
DOUT DIN
Multiplier
Bit Slip
Clock
(LVDS_LOAD_EN,
LVDS_diffioclk,
rx_outclk)
1), (2),
diffioclk
Chapter 8: High-Speed Differential I/O Interfaces and DPA in Arria II Devices
(3)
rx_inclock
DOUT DIN
Synchronizer
8 Serial LVDS
Clock Phases
LVDS Receiver
3
(DPA_LOAD_EN,
DPA_diffioclk,
rx_divfwdclk)
December 2010 Altera Corporation
Retimed
Data
DPA Clock
DPA Circuitry
DIN
Differential Receiver
+
LVDS Clock Domain
DPA Clock Domain
rx_in