ZHCSBT2G November 2012 – October 2017 66AK2H06 , 66AK2H12 , 66AK2H14
PRODUCTION DATA.
The debugger is connected to the device through its external JTAG interface. The first level of debug interface seen by the debugger is connected to the ICEPick module embedded in the DEBUGSS. ICEPick is the chip-level TAP, responsible for providing access to the IEEE 1149.1 and IEEE 1149.6 boundary scan capabilities of the device.
The device has multiple processors, some with secondary JTAG TAPs (C66x CorePacs) and others with an APB memory mapped interface (ARM CorePac and Coresight components). ICEPick manages the TAPs as well as the power/reset/clock controls for the logic associated with the TAPs as well as the logic associated with the APB ports.
ICEPick provides the following debug capabilities:
The ICEPick module implements a connect register, which must be configured with a predefined key to enable the full set of JTAG instructions. Once the debug connect key has been properly programmed, ICEPick signals and subsystems emulation logic should be turned on.