Altera Stratix V Advanced Systems Development Board User 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.
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