Feature List - STMicroelectronics SPC572L series Reference Manual

e200z215An3 Nexus 3 Module
Term
Nexus1
Ownership Trace
Message (OTM)
Public Messages
SoC
Standard
Transfer Code (TCODE)
Watchpoint
66.1.3

Feature List

The Nexus 3 module is compliant with Class 3 of the IEEE-ISTO 5001 standard, with
additional Class 4 features available. The following features are implemented:
•
Program Trace via Branch Trace Messaging (BTM). Branch trace messaging displays
program flow discontinuities (direct and indirect branches, exceptions, etc.), allowing
the development tool to interpolate what transpires between the discontinuities. Thus
static code may be traced.
•
Data Trace via Data Write Messaging (DWM) and Data Read Messaging (DRM). This
provides the capability for the development tool to trace reads and/or writes to selected
internal memory resources.
•
Ownership Trace via Ownership Trace Messaging (OTM). OTM facilitates ownership
trace by providing visibility of which process ID or operating system task is activated.
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Table 1070. Terms and Definitions(Continued)
The (OnCE) debug module. This module integrated with each processor provides
all static (core halted) debug functionality. This module is compliant with Class1 of
the IEEE-ISTO 5001 standard.
Visibility of process/function that is currently executing.
Messages on the auxiliary pins for accomplishing common visibility and
controllability requirements
"System-on-a-Chip". SoC signifies all of the modules on a single die. This
generally includes one or more processors with associated peripherals, interfaces
& memory modules.
The phrase "according to the standard" is used to indicate according to the IEEE-
ISTO 5001 standard.
Message header that identifies the number and/or size of packets to be
transferred, and how to interpret each of the packets.
A Data or Instruction Breakpoint or other debug event that does not cause the
processor to halt. Instead, a pin is used to signal that the condition occurred. A
Watchpoint Message may also be generated.
DocID027809 Rev 4
Description
RM0400