Altera Stratix V GX FPGA Development Board - Manual (Page 23)

Chapter 2: Board Components 2–15
Configuration, Status, and Setup Elements
October 2014 Altera Corporation Stratix V GX FPGA Development Board
Reference Manual
1 By default, the on-board USB-Blaster II clocks TCK at 24 MHz. For the on-board
USB-Blaster II to function correctly, you must set the Quartus II clock constraint on the
internal_tck
input signal to 24 MHz.
System Console USB Interface
The System Console USB interface is a fast parallel interface. Together with the soft
logic supplied by Altera, this interface provides a System Console master for debug
access.
The System Console controls the debug master via signals shown in Table 2–8 to give
fast access to an Avalon ® Memory-Mapped (Avalon-MM) master bus that the Qsys
system integration tool generates.
f For more information about the System Console, refer to the Analyzing and Debugging
Designs with the System Console chapter in volume 3 of the Quartus II Handbook.
Table 2–8 lists the System Console USB interface pin connections relative to the FPGA.
Flash Programming
Flash programming is possible through a variety of methods using the Stratix V GX
FPGA device.
The first method is to use the factory design called the Board Update Portal. This
design is an embedded web server, which serves the Board Update Portal web page.
The web page allows you to select new FPGA designs including hardware, software,
or both in an industry-standard S-Record File (.flash) and write the design to the user
hardware page (page 1) of the flash over the network.
Table 2–8. System Console USB Interface Pin Connections
Stratix V GX FPGA Device Pin Number Schematic Signal Name Direction Note
AV28 usb_clk input 48 MHz
H34 usb_reset_n input —
G32, G33, F32, E32, A37, A36, C34, A35 usb_data[7:0] bidirectional G32(MSB), A35 (LSB)
N34 usb_full output —
P34 usb_empty output —
J33 usb_wr_n input —
K33 usb_rd_n input —
E33 usb_oe_n input —
G34, K34 usb_addr bidirectional Reserved
J34 usb_scl bidirectional —
F33 usb_sda bidirectional —