ORT82G5-1BM680C LATTICE [Lattice Semiconductor], ORT82G5-1BM680C Datasheet - Page 42

• Manufacturer Part Number: ORT82G5-1BM680C
• Description: 0.6 to 3.7 Gbps XAUI and FC FPSCs
• Manufacturer: LATTICE [Lattice Semiconductor]

Lattice Semiconductor
Figure 22. Receive Clocking for a Dual Alignment in a Single Block (Similar Connections Would Be Used
for Block B)
For quad alignment, either RCK78A or RCK78B can be used to source RSYS_CLK_[A:B]2 as shown in Figure 23.
Figure 23. Clocking for Quad Alignment
FPGA
All Clocks at
Logic
FPGA
Logic
78.125 MHz
All Clocks at
78.125 MHz
TSYS_CLK_AD
TSYS_CLK_AD
RSYS_CLK_A2
TSYS_CLK_AC
RSYS_CLK_A2
TSYS_CLK_AC
TSYS_CLK_BC
RSYS_CLK_B2
TSYS_CLK_BD
RWCKAC
RWCKAD
RWCKAD
RWCKBC
RWCKBD
TCK78A
TCK78A
RCK78A
RWCKAC
TCK78B
RCK78B
RCK78A
Common Logic, Block A
Common Logic, Block A
Common Logic, Block B
Channel AC
Channel AC
Channel AD
Channel AD
Channel BC
Channel BD
42
ORCA ORT42G5 and ORT82G5 Data Sheet
REFCLK[P:N]_B
REFCLK[P:N]_A
2
2
2
Four Bidirectional Channels
Two Bidirectional Channels
of 3.125 Gbps Serial Data
of 3.125 Gbps Serial Data
REFCLK[P:N]_A
156.25 MHz
156.25 MHz