Altera Arria V GX FPGA Development Board - Manual (Page 33)

Chapter 2: Board Components 2–23
Configuration, Status, and Setup Elements
November 2013 Altera Corporation Arria V GX FPGA Development Board
Reference Manual
Table 2–16 lists the PCI Express control DIP switch component reference and
manufacturing information.
CPU Reset Push Button
Each Arria V GX FPGA has a CPU reset push button, CPU1_RESETn (S4) for FPGA 1 and
CPU2_RESETn
(S8) for FPGA 2. Both these push button are inputs to the Arria V GX
FPGA DEV_CLRn pin and are open-drain I/Os from the MAX II CPLD System
Controller. The push button is the default reset for both the FPGA and CPLD logic.
The MAX II System Controller also drives these push button during POR.
1 You must enable the CPU_RESETn signal within the Quartus II software for this reset
function to work. Otherwise, the CPU_RESETn acts as a regular I/O pin. When you
enable the signal in the Quartus II software, and then pull high on the board, every
register within the FPGA resets to a low signal.
Table 2–17 lists the CPU reset push button component reference and manufacturing
information.
MAX II Reset Push Button
The MAX II reset push button, MAX_RESETn, is an input to the MAX II CPLD System
Controller. This push button is the default reset for the CPLD logic.
Table 2–19 lists the MAX II reset push button component reference and manufacturing
information.
3 PCIE_PRSNT2n_x8
ON : Enable x8 presence detect
OFF : Disable x8 presence detect
ON
4 NC Unused OFF
Table 2–15. PCI Express Control DIP Switch Controls (Part 2 of 2)
Switch Schematic Signal Name Description Default
Table 2–16. PCI Express Control DIP Switch Component Reference and Manufacturing Information
Board
Reference
Description Manufacturer
Manufacturer
Part Number
Manufacturer Website
SW7 Four-position DIP switch
C&K Components/ ITT
Industries
TDA04H0SB1 www.ittcannon.com
Table 2–17. CPU Reset Configuration Push Button Component Reference and Manufacturing Information
Board
Reference
Description Manufacturer
Manufacturer
Part Number
Manufacturer Website
S4, S8 Push button Dawning Precision Co., Ltd. TS-A02SA-2-S100 www.dawning2.com.tw
Table 2–18. MAX II Reset Push Button Component Reference and Manufacturing Information
Board
Reference
Description Manufacturer
Manufacturer
Part Number
Manufacturer Website
S1 Push button Dawning Precision Co., Ltd. TS-A02SA-2-S100 www.dawning2.com.tw