CoreSight Program Flow Trace Architecture Specification: A.1.2. Resource control registers

This section contains register tables for PTM resource control. These are Table A.4 to Table A.18.

Table A.4. Trace Start/Stop Resource Control Register, 0x006

Bits	Description
[31:16]	When a bit is set to 1, it selects a single address comparator 16 to 1 as stop addresses. For example, bit [16] set to 1 selects single address comparator 1.
[15:0]	When a bit is set to 1, it selects a single address comparator 16 to 1 as start addresses. For example, bit [0] set to 1 selects single address comparator 1.

Table A.5. TraceEnable Control Register, 0x009

Bits	Description
[25]	Trace start/stop enable: 0 Tracing is unaffected by the trace start/stop logic. 1 Tracing is controlled by trace on and off addresses.
[24]	Include/exclude control: 0 Include. The specified resources indicate the regions in the tracing can occur. When outside this region tracing is prevented. 1 Exclude. The resources specified in bits [27:0] indicate regions to be excluded from the trace. When outside an exclude region, tracing can occur.
[23:8]	Reserved.
[7:0]	When a bit is set to 1, it selects an address range comparator 8 -1 for include/exclude control. For example, bit [0] set to 1 selects address range comparator 1.

Table A.6. FIFOFULL Level Register, 0x00B

Bits	Access	Description
[7:0]	Read/Write	The number of bytes left in the FIFO, below which the FIFOFULL signal is asserted.

Table A.7. Address Comparator Value Registers, 0x010-0x01F

Bits	Description
[31:0]	Address value

Table A.8. Address Comparator Access Type Registers, 0x020-0x02F, PFTv1.0

Bits	Description
[11:10]	Secure mode control: b00 Security level ignored. b01 Match only if in Non-secure state. b10 Match only if in Secure state. b11 Reserved.
[9:8]	Context ID comparator control: b00 Ignore Context ID comparators. b01 Address comparator matches only if Context ID comparator value 1 matches. b10 Address comparator matches only if Context ID comparator value 2 matches. b11 Address comparator matches only if Context ID comparator value 3 matches.
[2:0]	Access type, Read only: b001 Instruction execute.

Table A.9. Address Comparator Access Type Registers, 0x020-0x02F, PFTv1.1

Bits	Description
[15]	VMID control: b0 Ignore VMID b1 Match only if VMID matches value of ETMVMIDCVR.
[14]	Hyp mode control: b0 Ignore Hyp mode b1 Match only if processor is operating in Hyp mode.
[13:10]	Mode control For all implementations: b0000 Match all modes. b0001 Match all Non-secure modes. b0100 Match all modes except Secure User. b0101 Match all modes except Secure Privileged. Implementations with Security Extensions: b0010 Match all secure modes. b0011 No match. b0110 Match Secure Privileged mode only. b0111 Match Secure User mode only. b1000 Match all modes except Non-secure User. b1001 Match Non-secure Privileged mode only. b1100 Match all Privileged modes. b1101 Match Secure User and Non-secure Privileged modes only. b1010 Match all modes except Non-secure Privileged. b1011 Match Non-secure User mode only. b1111 Match all User modes.
[9:8]	Context ID comparator control: b00 Ignore Context ID comparators. b01 Address comparator matches only if Context ID comparator value 1 matches. b10 Address comparator matches only if Context ID comparator value 2 matches. b11 Address comparator matches only if Context ID comparator value 3 matches.
[2:0]	Access type, Read only: b001 Instruction execute.

Table A.10. Counter Reload Value Registers, 0x050-0x053

Bits	Description
[15:0]	Counter reload value

Table A.11. Counter Value Registers, 0x05C-0x05F

Bits	Description
[15:0]	Current counter value

Table A.12. Current Sequencer State Register, 0x067

Bits	Description
[1:0]	Possible values are: b00 State 1. b01 State 2. b10 State 3.

Table A.13. Locations of the Context ID Comparator Value Registers

Table A.14. Context ID Comparator Value Registers, 0x06C-0x06E

Bits	Description
[31:0]	Context ID value

Table A.15. Context ID Comparator Mask Register, 0x06F

Bits	Description
[31:0]	Context ID mask value

Table A.16. VMID Comparator Value Register, 0x090, from PFTv1.1

Bits	Description
[7:0]	Virtual Machine ID.

Table A.17. Synchronization Frequency Register, 0x078

Bits	Description
[11:0]	Synchronization frequency. Default value is 1024.

Table A.18. Extended External Input Selection Register, 0x07B

Bits	Description
[31:24]	Fourth extended external input selector
[23:16]	Third extended external input selector
[15:8]	Second extended external input selector
[7:0]	First extended external input selector

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