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ML630 Board User Guide
UG828 (v1.0) September 28, 2011
Chapter 1:
ML630 Board Features and Operation
The bridge device also provides as many as four GPIO signals that can be defined by the
user for status and control information (see
Table 1-17
).
A royalty-free software driver named Virtual COM Port (VCP) is available from Silicon
Laboratories. This driver permits the CP2103 USB to UART bridge to appear as a COM
port to the host computer communications application software (for example,
HyperTerminal or TeraTerm). The VCP driver must be installed on the host computer prior
to establishing communications with the ML630 board.
References
More information on the Silicon Labs CP2103 USB-to-UART bridge is available at:
http://www.silabs.com/products/interface/usbtouart/Pages/default.aspx
.
FPGA U2 200 MHz 2.5V LVDS Oscillator
Figure 1-2
callout [30]
Oscillator U63, located on the bottom of the board, is connected to FPGA U2 global clock
inputs.
Table 1-18
lists FPGA U2 pin connections to the LVDS oscillator U63.
References
More information on the SiTime SI9102AI oscillator is available at:
http://www.sitime.com/products/differential-oscillators/sit9102
.
Table 1-16:
FPGA U2 to U79 (CP2103 Bridge) Connections
FPGA U2 Pin
FPGA Function
Net Name
U79 Pin
U79 Function
P11
RTS, output
U2_USB_CTS_I
22
CTS, input
P10
CTS, input
U2_USB_RTS_O
23
RTS, output
F10
TX, data out
U2_USB_RXD_I
24
RXD, data in
E10
RX, data in
U2_USB_TXD_O
25
TXD, data out
Table 1-17:
FPGA U2 to U79 (CP2103 Bridge) User GPIO Connections
FPGA U2 Pin
Net Name
U79 Pin
L10
U2_USB_GPIO_0
19
M11
U2_USB_GPIO_1
18
D10
U2_USB_GPIO_2
17
E11
U2_USB_GPIO_3
16
Table 1-18:
FPGA U2 LVDS Oscillator U63 Global Clock Connections
FPGA U2 Pin
Net Name
U63 Pin
AR33
U2_LVDS_OSC_P
4
AT33
U2_LVDS_OSC_N
5