![](/images/new-backgrounds/1264492/264492159x1.webp)
R
Chapter 7: 1000BASE-X with RocketIO Transceivers
IOB LOGIC
brefclkp IBUFGDS
IPAD | brefclk (62.5MHz) |
IPAD brefclkn
DCM
CLKIN CLK0 FB
CLK2X180
BUFG
BUFG
userclk (62.5MHz)
userclk2 (125MHz)
LOCKED
component_name_block (Block Level from example design)
Ethernet
PCS/PMA or SGMII
LogiCORE
userclk
dcm_locked
userclk2
mgt_rx_reset mgt_tx_reset rxbufstatus[1:0] rxchariscomma rxcharisk rxclkcorcnt[2:0] rxdata[7:0] rxdisperr
powerdown txchardispmode txchardispval txcharisk txdata[7:0]
enablealign
|
|
|
|
|
|
| |
|
|
|
|
|
|
| RocketIO |
|
|
|
|
|
|
| (GT_ETHERNET_1) |
|
|
|
|
|
|
| REFCLKSEL |
|
|
| NC |
| REFCLK | ||
GND | REFCLK2 | ||||||
|
|
| NC |
| |||
|
|
|
|
|
|
| BREFCLK |
|
|
| NC |
| BREFCLK2 | ||
|
|
| |||||
|
|
|
|
|
|
| TXUSRCLK |
|
|
|
|
|
|
| TXUSRCLK2 |
|
|
|
|
|
|
| RXUSRCLK |
|
|
|
|
|
|
| RXUSRCLK2 |
|
|
|
|
|
|
| RXRESET |
|
|
|
|
|
|
| TXRESET |
|
|
|
|
|
|
| RXBUFSTATUS[1:0] |
|
|
|
|
|
|
| RXCHARISCOMMA |
|
|
|
|
|
|
| RXCHARISK |
|
|
|
|
|
|
| RXCLKCORCNT[2:0] |
|
|
|
|
|
|
| RXDATA[7:0] |
|
|
|
|
|
|
| RXDISPERR |
| GND |
|
|
| LOOPBACK[1:0] | ||
|
|
|
|
|
|
| POWERDOWN |
|
|
|
|
|
|
| TXCHARDISPMODE |
|
|
|
|
|
|
| TXCHARDISPVAL |
|
|
|
|
|
|
| TXCHARISK |
|
|
|
|
|
|
| TXDATA[7:0] |
|
|
| ENPCOMMAALIGN | ||||
D Q |
|
| |||||
|
|
|
|
|
|
| ENMCOMMAALIGN |
|
|
|
|
|
|
| RXRECCLK |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| RXPOLARITY |
|
|
|
|
|
|
| TXPOLARITY |
|
|
|
|
|
|
| TXFORCECRCERR |
|
|
|
|
|
|
| TXINHIBIT |
|
|
|
|
|
|
|
|
GND
Figure 7-1: 1000BASE-X Connection to a Virtex-II Pro MGT
80 | www.xilinx.com | Ethernet |
|
| UG155 March 24, 2008 |