
3–14 Chapter 3: 10GBASE-R PHY IP Core
Clocks for Arria V GT Devices
Altera Transceiver PHY IP Core November 2012 Altera Corporation
User Guide
Clocks for Arria V GT Devices
Figure 3–7 illustrates the clock generation and distribution for Arria V GT devices.
Figure 3–7. Arria V GT Clock Generation and Distribution
10GBASE-R Transceiver Channel - Arria V GT
TX PCS
(soft)
RX PCS
(soft)
TX PMA
(hard)
RX PMA
(hard)
TX PLL
64
64
64
64
80
80
xgmii_tx_clk
156.25 MHz
161.1328 MHz
161.1328 MHz
10.3125 Gbps
10.3125 Gbps
pll_ref_clk
644.53125 MHz
8/33
fPLL
rx_coreclkin
RX
TX
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