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Ethernet 1000BASE-X PCS/PMA or SGMII v9.1
UG155 March 24, 2008
Chapter 8:
SGMII / Dynamic Standards Switching with RocketIO Transceivers
R
.
Figure 8-5:
SGMII Connection to a Virtex-5 RocketIO GTP Transceiver
Ethernet 1000BASE-X
PCS/PMA or SGMII
LogiCORE
Virtex-5
GTP
RocketIO
(used)
TXU
S
RCLK0
TXU
S
RCLK20
RXU
S
RCLK20
userclk
userclk2
rxbufstatus[1:0]
rxchariscomma
rxcharisk
rxclkcorcnt[2:0]
rxdata[7:0]
rxrundisp
powerdown
txchardispmode
txchardispval
txcharisk
txdata[7:0]
enablealign
RXCHARI
S
COMMA0
RXCHARI
S
K0
RXDATA0[7:0]
RXRUNDI
S
P0
POWERDOWN0
TXCHARDI
S
PMODE0
TXCHARDI
S
PVAL0
TXCHARI
S
K0
TXDATA[07:0]
RXENPCOMMAALIGN0
RXENMCOMMAALIGN0
RXDI
S
PERR0
rxdisperr
CLKIN
REFCLKOUT
FPGA
f
ab
ric
Rx
El
as
tic
B
u
ffer
RXNOTINTABLE0
rxnotint
ab
le
BUFR
RXRECCLK0
userclk2 (125MHz)
BUFG
component_n
a
me
_
b
lock
(Block Level from
ex
a
mple de
s
ign)
RXU
S
RCLK0
clkin
(125MHz)
IBUFGDS
IPAD
brefclkp
IPAD
brefclkn
rocketio_wr
a
pper_gtp_tile
rocketio_wr
a
pper_gtp