RPM Systems Corporation
March, 2016 Page 47
MPQ Manufacturing Programmer User's Guide
G.2.3 Security Bit Programming
In addition to the LOCK bits in the fuse bytes, the AVR32 provides a Security bit, which prevents all
further JTAG access to flash memory and fuse bits. The MPQ allows this bit to be programmed at the comple-
tion of the memory programming cycle. To select this features, check the "Program Security Bit' box in the
"Security Bit" frame of the AVR Programming Options window. Note that, once the security bit has been
programmed, future verify operations performed on the device will failm as flash is no longer readable from the
JTAG port. The Secuirty Bit can only be cleared by a chip erase operation.
G.3 - Target Cable Connections
The MPQ-AVR32 is shipped with one JTAG programming cable. The connector pinouts correspond to
the standard 0.1" x 0.1" spaced 10-pin programming connectors specified by Atmel JTAG programming. The
following tables shows the pin assignments for the various connectors. Note that one Target Cable assembly
provides four sets of target programming signals.
