66AK2L06
www.ti.com
SPRS930 –APRIL 2015
11.30.1.2 DSP Features
• Support for Halt-mode debug
• Support for Real-time debug
• Support for Monitor mode debug
• Advanced Event Triggering (AET) for data/PC watch-points, event monitoring and visibility into external
events
• Support for PC/Timing/Data/Event trace.
• TETB (TI Embedded Trace Buffer) of 4KB to store PC/Timing/Data/Event trace. The trace data is
copied by EDMA to external memory for draining by device high speed serial interfaces or it can be
drained through EMUx pins
• Support for Cross triggering source/sink to other C66x CorePacs and device subsystems.
• Using Advanced Event Triggering to Find and Fix Intermittent Real-Time Bugs application report
• Using Advanced Event Triggering to Debug Real-Time Problems in High Speed Embedded
Microprocessor Systems application report
For more information on the AET, see the following documents:
• Using Advanced Event Triggering to Find and Fix Intermittent Real-Time Bugs application report
(SPRA753)
• Using Advanced Event Triggering to Debug Real-Time Problems in High Speed Embedded
Microprocessor Systems application report (SPRA387)
11.30.2 ICEPick Module
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 IEEE1149.6 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:
• Debug connect logic for enabling or disabling most ICEPick instructions
• Dynamic TAP insertion
– Serially linking up to 32 TAP controllers
– Individually selecting one or more of the TAPS for scan without disrupting the instruction register
(IR) state of other TAPs
• Power, reset and clock management
– Provides the power and clock status of the domain to the debugger
– Provides debugger control of the power domain of a processor.
• Force the domain power and clocks on
• Prohibit the domain from being clock-gated or powered down
– Applies system reset
– Provides wait-in-reset (WIR) boot mode
– Provides global and local WIR release
– Provides global and local reset block
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.
Copyright © 2015, Texas Instruments Incorporated 66AK2L06 Peripheral Information and Electrical Specifications 283
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