20.2.3 ETAP Control (ETAP_CONTROL) Command

ETAP_CONTROL selects the Control register. The EJTAG Control Register (ECR) handles processor Reset and soft Reset indication, Debug mode indication, access start, finish and size and read/write indication. The ECR also provides the following features:

  • Controls debug vector location and indication of serviced processor accesses
  • Allows a debug interrupt request
  • Indicates a processor Low-power mode
  • Allows implementation-dependent processor and peripheral Resets