Altera Stratix V Advanced Systems Development Board - Manual (Page 23)

Chapter 2: Board Components 2–13
Configuration, Status, and Setup Elements
January 2014 Altera Corporation Stratix V Advanced Systems Development Board
Reference Manual
MAX II CPLD EPM570F100
The MAX II CPLD is dedicated to the on-board USB-Blaster II function. The CPLD
connects to the USB 2.0 PHY device on one side and drives the JTAG signals out the
other side through the general purpose I/O (GPIO) pins.
Table 2–5 lists the I/O signals present on the MAX II CPLD EPM570F100.
Table 2–5. MAX II CPLD On-Board USB-Blaster II I/O Signals
Schematic Signal Name Type Description
SC_RX 1.5-V CMOS output USB system console receive LED
SC_TX 1.5-V CMOS output USB system console transmit LED
JTAG_RX 1.5-V CMOS output USB-Blaster II JTAG receive LED
JTAG_TX 1.5-V CMOS output USB-Blaster II JTAG transmit LED
C_JTAG_TCK 2.5-V CMOS output GPIO for on-board JTAG chain clock
C_JTAG_TMS 2.5-V CMOS output GPIO for on-board JTAG chain mode
C_JTAG_TDI 2.5-V CMOS output GPIO for on-board JTAG chain data in
C_JTAG_TDO 2.5-V CMOS input GPIO for on-board JTAG chain data out
USB_CFG(14:0) 1.5-V CMOS input/output
Configuration data between the MAX V System
Controller and the on-board USB-Blaster II.
USB_CLK 2.5-V CMOS input USB System Console clock
USB_OEn 1.5-V CMOS input USB System Console FPGA output enable
USB_RESETn 1.5-V CMOS input USB System Console reset
USB_DATA(7:0) 1.5-V CMOS inout (8 bits) USB System Console FIFO data bus
USB_RDn 1.5-V CMOS input USB System Console read from FIFO
USB_WRn 1.5-V CMOS input USB System Console write to FIFO
USB_EMPTY 1.5-V CMOS output USB System Console FIFO empty
USB_FULL 1.5-V CMOS output USB System Console FIFO full
USB_ADDR(1:0) 1.5-V CMOS input/output USB System Console address bus
USB_SCL 1.5-V CMOS input/output USB System Console configuration clock
USB_SDA 1.5-V CMOS input/output USB System Console configuration data
FACTORY_REQUEST 1.5-V CMOS input Send FACTORY command
FACTORY_STATUS 1.5-V CMOS output FACTORY command status
M570_CLOCK 1.5-V CMOS input 25-MHz input clock for FACTORY command