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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 957
UG585 (v1.11) September 27, 2016
Appendix B: Register Details
Register (ptm) ETMCCR
Register ETMCCR Details
DebugReqCtrl 9 rw 0x0 Debug Request Control
When set to b1 and the trigger event occurs, the
PTMDBGRQ output is asserted until
PTMDBGACK is observed. This enables a
debugger to force the processor into Debug state.
BranchOutput 8 rw 0x0 When this bit is set to b1, addresses are output for
all executed branches, both direct and indirect.
reserved 7:1 rw 0x0 Reserved
PowerDown 0 rw 0x1 This bit enables external control of the PTM. This
bit must be cleared by the trace software tools at
the beginning of a debug session.
When this bit is set to b0, both the PTM and the
trace interface in the processor are enabled.
To avoid corruption of trace data, this bit must not
be set before the Programming Status bit in the
PTM Status Register has been read as 1.
Name ETMCCR
Relative Address 0x00000004
Absolute Address debug_cpu_ptm0: 0xF889C004
debug_cpu_ptm1: 0xF889D004
Width 32 bits
Access Type ro
Reset Value 0x8D294004
Description Configuration Code Register
Field Name Bits Type Reset Value Description
Field Name Bits Type Reset Value Description
IDRegPresent 31 ro 0x1 Indicates that the ID Register is present.
reserved 30:28 ro 0x0 Reserved
SoftwareAccess 27 ro 0x1 Indicates that software access is supported.
TraceSSB 26 ro 0x1 Indicates that the trace start/stop block is present.
NumCntxtIDComp 25:24 ro 0x1 Specifies the number of Context ID comparators,
one.
FIFOFULLLogic 23 ro 0x0 Indicates that it is not possible to stall the
processor to prevent FIFO overflow.
NumExtOut 22:20 ro 0x2 Specifies the number of external outputs, two.