12.5.4. Hardware Support settings for an ARM architecture-based target

Where your debug target supports breakpoint tests in hardware, they can be managed and edited using this group. If enabled, the display lists currently available tests, for example for an ARM® architecture-based target:

AccessSize

Supports testing MAS signals from the processor. This enables you to test the size of data bus activity. The options available depend on the target processor. For example, the options available for an ARM940T™ are:

  • Default

  • 8-bit

  • 16-bit

  • 32-bit

  • 8/16-bit

  • 8/32-bit.

Ext

Supports hardware breakpoints that depend on some external condition. This test is not supported on some processors (for example, the ARM1136JF-S™). Where supported, the options available depend on the target processor. For example, the options available for an ARM940T are:

  • Ignore

  • Low

  • High.

Mode

Supports testing nTrans signals from the processor. This enables you to test the data not translate signal to differentiate access between a User mode and a privileged mode. The options available depend on the target processor. For example, the options available for an ARM940T are:

  • Any

  • Privileged

  • User.

Copyright © 2002-2011 ARM. All rights reserved.ARM DUI 0153N
Non-ConfidentialID052111