TRCEVENTCTL0R

External register TRCEVENTCTL0R bits [31:0] are architecturally mapped to AArch64 System register TRCEVENTCTL0R[31:0].

This register is present only when FEAT_ETE is implemented, FEAT_TRC_EXT is implemented and TRCIDR4.NUMRSPAIR != 0b0000. Otherwise, direct accesses to TRCEVENTCTL0R are RES0.

Attributes

Field descriptions

EVENT3_TYPE, bit [31]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

Chooses the type of Resource Selector.

EVENT3_TYPE	Meaning
0b0	A single Resource Selector. TRCEVENTCTL0R.EVENT3.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.
0b1	A Boolean-combined pair of Resource Selectors. TRCEVENTCTL0R.EVENT3.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT3.SEL[4] is RES0.

EVENT3_TYPE

Meaning

0b0

A single Resource Selector.

TRCEVENTCTL0R.EVENT3.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.

0b1

A Boolean-combined pair of Resource Selectors.

TRCEVENTCTL0R.EVENT3.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT3.SEL[4] is RES0.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

Bits [30:29]

EVENT3_SEL, bits [28:24]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

When any of the selected resource events occurs and TRCEVENTCTL1R.INSTEN[3] == 1, then Event element 3 is generated in the instruction trace element stream.

Defines the selected Resource Selector or pair of Resource Selectors. TRCEVENTCTL0R.EVENT3.TYPE controls whether TRCEVENTCTL0R.EVENT3.SEL is the index of a single Resource Selector, or the index of a pair of Resource Selectors.

If an unimplemented Resource Selector is selected using this field, the behavior of the resource event is UNPREDICTABLE, and the resource event might fire or might not fire when the resources are not in the Paused state.

Selecting Resource Selector pair 0 using this field is UNPREDICTABLE, and the resource event might fire or might not fire when the resources are not in the Paused state.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

EVENT2_TYPE, bit [23]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

Chooses the type of Resource Selector.

EVENT2_TYPE	Meaning
0b0	A single Resource Selector. TRCEVENTCTL0R.EVENT2.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.
0b1	A Boolean-combined pair of Resource Selectors. TRCEVENTCTL0R.EVENT2.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT2.SEL[4] is RES0.

EVENT2_TYPE

Meaning

0b0

A single Resource Selector.

TRCEVENTCTL0R.EVENT2.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.

0b1

A Boolean-combined pair of Resource Selectors.

TRCEVENTCTL0R.EVENT2.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT2.SEL[4] is RES0.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

Bits [22:21]

EVENT2_SEL, bits [20:16]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

When any of the selected resource events occurs and TRCEVENTCTL1R.INSTEN[2] == 1, then Event element 2 is generated in the instruction trace element stream.

Defines the selected Resource Selector or pair of Resource Selectors. TRCEVENTCTL0R.EVENT2.TYPE controls whether TRCEVENTCTL0R.EVENT2.SEL is the index of a single Resource Selector, or the index of a pair of Resource Selectors.

Selecting Resource Selector pair 0 using this field is UNPREDICTABLE, and the resource event might fire or might not fire when the resources are not in the Paused state.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

EVENT1_TYPE, bit [15]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

Chooses the type of Resource Selector.

EVENT1_TYPE	Meaning
0b0	A single Resource Selector. TRCEVENTCTL0R.EVENT1.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.
0b1	A Boolean-combined pair of Resource Selectors. TRCEVENTCTL0R.EVENT1.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT1.SEL[4] is RES0.

EVENT1_TYPE

Meaning

0b0

A single Resource Selector.

TRCEVENTCTL0R.EVENT1.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.

0b1

A Boolean-combined pair of Resource Selectors.

TRCEVENTCTL0R.EVENT1.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT1.SEL[4] is RES0.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

Bits [14:13]

EVENT1_SEL, bits [12:8]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

When any of the selected resource events occurs and TRCEVENTCTL1R.INSTEN[1] == 1, then Event element 1 is generated in the instruction trace element stream.

Defines the selected Resource Selector or pair of Resource Selectors. TRCEVENTCTL0R.EVENT1.TYPE controls whether TRCEVENTCTL0R.EVENT1.SEL is the index of a single Resource Selector, or the index of a pair of Resource Selectors.

Selecting Resource Selector pair 0 using this field is UNPREDICTABLE, and the resource event might fire or might not fire when the resources are not in the Paused state.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

EVENT0_TYPE, bit [7]
When TRCIDR4.NUMRSPAIR != 0b0000:

Chooses the type of Resource Selector.

EVENT0_TYPE	Meaning
0b0	A single Resource Selector. TRCEVENTCTL0R.EVENT0.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.
0b1	A Boolean-combined pair of Resource Selectors. TRCEVENTCTL0R.EVENT0.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT0.SEL[4] is RES0.

EVENT0_TYPE

Meaning

0b0

A single Resource Selector.

TRCEVENTCTL0R.EVENT0.SEL[4:0] selects the single Resource Selector, from 0-31, used to activate the resource event.

0b1

A Boolean-combined pair of Resource Selectors.

TRCEVENTCTL0R.EVENT0.SEL[3:0] selects the Resource Selector pair, from 0-15, that has a Boolean function that is applied to it whose output is used to activate the resource event. TRCEVENTCTL0R.EVENT0.SEL[4] is RES0.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

Bits [6:5]

EVENT0_SEL, bits [4:0]
When TRCIDR4.NUMRSPAIR != 0b0000:

When any of the selected resource events occurs and TRCEVENTCTL1R.INSTEN[0] == 1, then Event element 0 is generated in the instruction trace element stream.

Defines the selected Resource Selector or pair of Resource Selectors. TRCEVENTCTL0R.EVENT0.TYPE controls whether TRCEVENTCTL0R.EVENT0.SEL is the index of a single Resource Selector, or the index of a pair of Resource Selectors.

Selecting Resource Selector pair 0 using this field is UNPREDICTABLE, and the resource event might fire or might not fire when the resources are not in the Paused state.

The reset behavior of this field is:

On a Trace unit reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

Accessing TRCEVENTCTL0R

Writes are CONSTRAINED UNPREDICTABLE if the trace unit is not in the Idle state.

TRCEVENTCTL0R can be accessed through the external debug interface:

TRCEVENTCTL0R, Trace Event Control 0 Register

Purpose

Configuration

Attributes

Field descriptions

EVENT3_TYPE, bit [31]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

Otherwise:

Bits [30:29]

EVENT3_SEL, bits [28:24]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

Otherwise:

EVENT2_TYPE, bit [23]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

Otherwise:

Bits [22:21]

EVENT2_SEL, bits [20:16]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

Otherwise:

EVENT1_TYPE, bit [15]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

Otherwise:

Bits [14:13]

EVENT1_SEL, bits [12:8]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

Otherwise:

EVENT0_TYPE, bit [7]
When TRCIDR4.NUMRSPAIR != 0b0000:

Otherwise:

Bits [6:5]

EVENT0_SEL, bits [4:0]
When TRCIDR4.NUMRSPAIR != 0b0000:

Otherwise:

Accessing TRCEVENTCTL0R

TRCEVENTCTL0R can be accessed through the external debug interface:

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
EVENT3_TYPE	RES0		EVENT3_SEL					EVENT2_TYPE	RES0		EVENT2_SEL					EVENT1_TYPE	RES0		EVENT1_SEL					EVENT0_TYPE	RES0		EVENT0_SEL

TRCEVENTCTL0R, Trace Event Control 0 Register

Purpose

Configuration

Attributes

Field descriptions

EVENT3_TYPE, bit [31]When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

Otherwise:

Bits [30:29]

EVENT3_SEL, bits [28:24]When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

Otherwise:

EVENT2_TYPE, bit [23]When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

Otherwise:

Bits [22:21]

EVENT2_SEL, bits [20:16]When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

Otherwise:

EVENT1_TYPE, bit [15]When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

Otherwise:

Bits [14:13]

EVENT1_SEL, bits [12:8]When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

Otherwise:

EVENT0_TYPE, bit [7]When TRCIDR4.NUMRSPAIR != 0b0000:

Otherwise:

Bits [6:5]

EVENT0_SEL, bits [4:0]When TRCIDR4.NUMRSPAIR != 0b0000:

Otherwise:

Accessing TRCEVENTCTL0R

TRCEVENTCTL0R can be accessed through the external debug interface:

EVENT3_TYPE, bit [31]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

EVENT3_SEL, bits [28:24]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 3:

EVENT2_TYPE, bit [23]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

EVENT2_SEL, bits [20:16]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 2:

EVENT1_TYPE, bit [15]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

EVENT1_SEL, bits [12:8]
When TRCIDR4.NUMRSPAIR != 0b0000 and UInt(TRCIDR0.NUMEVENT) >= 1:

EVENT0_TYPE, bit [7]
When TRCIDR4.NUMRSPAIR != 0b0000:

EVENT0_SEL, bits [4:0]
When TRCIDR4.NUMRSPAIR != 0b0000: