16
MachXO3 Starter Kit User Guide
Table 10. JTAG Programming Pin Information
Description
MachXO3 Pin
Test Data Output
C6:TDO
Test Data Input
A6:TDI
Test Mode Select
B8:TMS
Test Clock
A7:TCK
Table 11. SPI Programming Pin Information
Description
MachXO3 Pin
Master Clock/Config Clock
P6:MCLK/CCLK
Serial Data Input
P13: SI/SISPI
Serial Data Output
T6: SO/SPISO
SPI Slave Select
R12: SN
Table 12. I
2
C Programming Pin Information
Description
MachXO3 Pin
Serial Data
C9:SDA
Serial Clock
A9:SCL
LEDs
A blue LED (D1) is used to indicate USB 5V power. Eight red LEDs are driven by I/O pins of the MachXO3 device.
Table 13. Power and User LEDs Reference
Item
Description
Reference Designators
Red LEDs (D2, D3, D4, D5, D6, D7, D8, D9)
Blue LEDs (D1)
Part Number
LTST-C190KRKT (D2-D9)
LTST-C190TBKT (D1)
Manufacturer
Lite-On It Corporation
Web Site
www.liteonit.com
Power Supply
3.3 V and 1.2 V power supply rails are converted from the USB 5 V interface when the board is connected to a host
PC.
Test Points
In order to check the various voltage levels used, test points are provided:
• TP1: +3.3 V
• TP2: +1.2 V
• TP3: GND
USB Programming and Debug Interface
The USB mini-B socket of the Starter Kit serves as the programming and debug interface.
JTAG Programming: For JTAG programming, a preprogrammed USB PHY peripheral controller is provided on the
Starter Kit to serve as the programming interface to the MachXO3 FPGA.
Programming requires the Lattice Diamond or ispVM System software.
