EP4SGX360FH29C3N Altera, EP4SGX360FH29C3N Datasheet - Page 291

• Manufacturer Part Number: EP4SGX360FH29C3N
• Description: IC STRATIX IV FPGA 360K 780HBGA
• Manufacturer: Altera
• Series: Stratix® IV GXr

Specifications of EP4SGX360FH29C3N

• Number Of Logic Elements/cells: 353600
• Number Of Labs/clbs: 14144
• Total Ram Bits: 22564
• Number Of I /o: 289
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 780-HBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

Chapter 8: High-Speed Differential I/O Interfaces and DPA in Stratix IV Devices
Differential Transmitter
Figure 8–7. Serializer Bypass in Stratix IV Devices
Notes to
(1) All disabled blocks and signals are grayed out.
(2) In DDR mode, tx_inclock clocks the IOE register. In SDR mode, data is directly passed through the IOE.
(3) In SDR and DDR modes, the data width to the IOE is 1 and 2 bits, respectively.
February 2011 Altera Corporation
Figure
(LVDS_LOAD_EN, diffioclk, tx_coreclock)
(LVDS_LOAD_EN, diffioclk, tx_coreclock)
8–7:
tx_coreclock
tx_coreclock
Figure 8–6
mode, you can use an LVDS channel as a clock output channel.
Figure 8–6. Stratix IV Transmitter in Clock Output Mode
You can bypass the Stratix IV serializer to support DDR (×2) and SDR (×1) operations
to achieve a serialization factor of 2 and 1, respectively. The I/O element (IOE)
contains two data output registers that can each operate in either DDR or SDR mode.
Figure 8–7
FPGA
Fabric
tx_in 2
shows the Stratix IV transmitter in clock output mode. In clock output
shows the serializer bypass path.
FPGA
Fabric
Left/Right PLL
Left/Right PLL
DIN
DIN
Serializer
Serializer
3
DOUT
DOUT
(Note
2
Left/Right
PLL
IOE
1), (2),
Parallel
Transmitter Circuit
LVDS_LOAD_EN
diffioclk
(3)
LVDS Transmitter
Series
IOE supports SDR, DDR, or
Non-Registered Datapath
Stratix IV Device Handbook Volume 1
+
-
Txclkout+
Txclkout–
tx_out
8–13