DK-DEV-4SGX230N Altera, DK-DEV-4SGX230N Datasheet - Page 699

• Manufacturer Part Number: DK-DEV-4SGX230N
• Description: KIT DEVELOPMENT STRATIX IV
• Manufacturer: Altera
• Series: Stratix® IVr
• Type: FPGAr

Specifications of DK-DEV-4SGX230N

• Contents: Development Board, Universal Power Supply, Cables and Software
• Silicon Manufacturer: Altera
• Core Architecture: FPGA
• Core Sub-architecture: Stratix
• Silicon Core Number: EP4S
• Silicon Family Name: Stratix IV GX
• Rohs Compliant: Yes
• For Use With/related Products: EP4SGX230K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 544-2594

Chapter 2: Transceiver Clocking in Stratix IV Devices
Transceiver Channel Datapath Clocking
February 2011 Altera Corporation
1
Bonded Channel Configurations
In PCS and PMA bonded channel configurations, the PCS and PMA blocks of all
bonded channels are clocked by the same low-speed parallel clock and high-speed
serial clock from the CMU0 clock divider or the ATX PLL block. The phase
compensation FIFOs of all bonded channels also share common read and write
pointers and enable signals generated in the CCU.
Stratix IV devices support ×4 PCS and PMA channel bonding that allows bonding of
four channels within the same transceiver block. Stratix IV devices also support ×8
channel bonding that allows bonding of eight PCS and PMA channels across two
transceiver blocks on the same side of the device.
The following functional modes support ×4 PCS and PMA bonded transmitter
channel configuration:
■
■
■
Use the CMU channels to generate the transceiver clocks for all ×4 bonded functional
modes listed above. Additionally, you may use the ATX PLLs to generate the
transceiver clocks for PCIe ×4 Gen 2 and Basic ×4 functional mode.
You must assign tx_dataout[0] of the ×4 bonded link (XAUI or PCIe ×4) to physical
channel 0 of the transceiver block, tx_dataout[1] to physical channel 1 of the
transceiver block, tx_dataout[2] to physical channel 2 of the transceiver block, and
tx_dataout[3] to physical channel 3 of the transceiver block. Otherwise, the
Quartus II compilation errors out.
PCIe ×4—Gen1 and Gen2
XAUI
Basic ×4
×4 PCS and PMA Bonded Channel Configuration
Stratix IV Device Handbook Volume 2: Transceivers
2–27