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ML505/ML506/ML507 Evaluation Platform
UG347 (v3.1.1) October 7, 2009
Chapter 1:
ML505/ML506/ML507 Evaluation Platform
R
41. Serial-ATA Host Connectors
Serial-ATA (SATA) is the next generation of the ATA interface used for storage devices
such as hard disks. The board contains two SATA host connectors that can be connected to
a SATA device (such as a hard disk) using a standard SATA cable. The SATA connectors
are connected to GTPs on the FPGA as shown in
Table 1-26
.
SATA can also be used as a convenient and low cost medium for connecting GTP/GTX
transceivers. The SATA physical interface can carry GTP/GTX signals up to 1.5 Gb/s for
general-purpose usage. The board ships with a special Xilinx SATA crossover cable that is
used as a loopback connection between the two SATA host connectors for loopback testing
and bit error rate testing (BERT). The SATA crossover cable can also be used to connect
GTP/GTX transceivers between two boards. For GTP/GTX SATA clock jumpering, see
Figure 1-4, page 32
.
Note:
The special SATA crossover cable cannot be used to connect a SATA host to a SATA device
(that is, PC to hard disk). It is only intended for host-to-host loopback connections.
42. SFP Connector
The board contains a small form-factor pluggable (SFP) connector and cage assembly that
accepts SFP modules. The SFP interface is connected to GTP0 of GTP_X0Y4 on the FPGA.
The SFP module serial ID interface is connected to the IIC multiplexer on the board (See
“14. IIC Bus with 8-Kb EEPROM,” page 27
for more information). The control and status
signals for the SFP module are connected to jumpers, test points, and LEDs as described in
Table 1-27
. The SFP module connections are shown in
Table 1-28, page 45
.
Table 1-26:
SATA Connections
Pin Name
FPGA Pin (U1)
Connector Pin
ML505/ML506
ML507
SATA1_RX_P
W1
J40, pin 6
GTP0 of
GTP_X0Y2
receive pair
GTX0 of
GTX_X0Y3
receive pair
SATA1_RX_N
Y1
J40, pin 5
SATA1_TX_P
V2
J40, pin 2
GTP0 of
GTP_X0Y2
transmit pair
GTX0 of
GTX_X0Y3
transmit pair
SATA1_TX_N
W2
J40, pin 3
SATA2_RX_P
AB1
J41, pin 6
GTP1 of
GTP_X0Y2
receive pair
GTX1 of
GTX_X0Y3
receive pair
SATA2_RX_N
AA1
J41, pin 5
SATA2_TX_P
AC2
J41, pin 2
GTP1 of
GTP_X0Y2
transmit pair
GTX1 of
GTX_X0Y3
transmit pair
SATA2_TX_N
AB2
J41, pin 3
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