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Pico E-15 Hardware Reference
www.picocomputing.com
Pico Computing
(206) 283-2178
150 Nickerson Street. Suite 311
Seattle, WA 98109
10
CPLD TurboLoader
A CPLD (Complex Programmable Logic Device) is a smaller version of an FPGA (described
above) with permanent Flash storage built in. The Pico E-15 contains one CPLD that loads
and reconfigures the FPGA. The Pico firmware guide describes how to access the CPLD
TurboLoader.
The Flash ROM’s address bus can be controlled by either the TurboLoader or the FPGA (but
not both). During power-up or reboot, the TurboLoader is in control of the Flash ROM Address
bus. At all other times the FPGA is in control of the address bus.
CPLD Resources:
Xilinx CPLD Website http://www.xilinx.com/cpld