AT88SCK109STK3

3-18

AT88CK109STK3 User Guide

8699A—CRYPTO—10/09

When using JTAG ICE MK II for debugging, and as AT90USB1287 parts are factory configured

with the higher security level set, a chip erase operation will be performed on the part before

debugging. Thus the on-chip flash bootloader will be erased. It can be restored after the debug

session using the bootloader hex file available from ATMEL website.

3.15

Test Points

There are 4 test points implemented, these test points are referenced in the full schematics section.



VCC,

AT88CK109BK3



GND

AT88CK109BK3



HOST signal pin

AT88CK109BK3

INTERCONNECT Header



CLIENT signal pin

AT88CK109BK3

INTERCONNECT Header