M1AFS-EMBEDDED-KIT Actel, M1AFS-EMBEDDED-KIT Datasheet - Page 37

• Manufacturer Part Number: M1AFS-EMBEDDED-KIT
• Description: MCU, MPU & DSP Development Tools CortexM1-enabled Fusion Embedded Kit
• Manufacturer: Actel

Specifications of M1AFS-EMBEDDED-KIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7 – Debug
About Debug
The ARM Debug Architecture uses a protocol converter box to allow the debugger to talk via a JTAG port
directly to the core.
Debug facilitates the following:
The main debug components are as follows:
All debug components exist on the internal Private Peripheral Bus (PPB), 0xE000ED30 to 0xE000EEFF.
Access to the debug components, debug control, and configuration are only available when the debug
extension is present. You can never access the debug components from the processor, even when
debug is present.
Debug control and data access occur through the Advanced High-Performance Bus-Access Port
(AHB-AP).
Access includes the following:
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Core halt
Core stepping
Core register access
Read/Write to TCMs
Read/Write to AHB address space
Breakpoints
Watchpoints
Debug control registers to access and control debugging of the core
BreakPoint Unit (BPU) to implement breakpoints
Data Watchpoint (DW) unit to implement watchpoints and trigger resources
Debug memory interfaces to access external ITCM and DTCM
ROM table
The AHB-PPB. Through this bus, the debugger can access debug, including the following:
– debug control
– DW unit
– BPU unit
– The ROM Table
The AHB address space. The AHB slaves in the debug system always expect 32-bit AHB
transfers. If a byte or halfword access is created from the DAP, the transfer is extended to a 32-bit
access and all 32 bits in the register are accessed.
how the debug system interacts with the rest of the processor.
R ev i si o n 1 2
Figure 1-1 on page 9
shows
an overview of
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