Xilinx 1000BASE-X - Manual (Page 82)

82 www.xilinx.com Ethernet 1000BASE-X PCS/PMA or SGMII v9.1
UG155 March 24, 2008
Chapter 7: 1000BASE-X with RocketIO Transceivers R
Figure 7-2: 1000BASE-X Connection to Virtex-4 MGT
Ethernet 1000BASE-X
PCS/PMA or SGMII
LogiCORE
Virtex-4
GT11
RocketIO
(used)
TXUSRCLK
TXUSRCLK2
RXUSRCLK
RXUSRCLK2
userclk
userclk2
userclk2 (125MHz)
IPAD
IPAD
brefclkn
(250 MHz)
rxbufstatus[1:0]
rxchariscomma
rxcharisk
rxclkcorcnt[2:0]
rxdata[7:0]
rxrundisp
powerdown
txchardispmode
txchardispval
txcharisk
txdata[7:0]
enablealign
RXBUFERR
RXCHARISCOMMA
RXCHARISK
RXSTATUS[5:0]
RXDATA[7:0]
RXRUNDISP
POWERDOWN
TXCHARDISPMODE
TXCHARDISPVAL
TXCHARISK
TXDATA[7:0]
ENPCOMMAALIGN
ENMCOMMAALIGN
BUFG
Virtex-4
GT11CLK_MGT
MGTCLKP
MGTCLKN
SYNCLK1OUT
RXDISPERR rxdisperr
LOGIC
SHIM
Cal Block v1.4.1
brefclkp
(250 MHz)
REFCLK1
synclk1
'0'
'0'
TXOUTCLK1
DCLK
DCLK
component_name_block
(Block Level from
example design)
TX_SIGNAL_DETECT
RX_SIGNAL_DETECT
'1'
signal_detect
dclk
BUFG