15.3.2.2 MTB_DWT Comparator Register (MTBDWT_COMPn)
The MTBDWT_COMPn registers provide the reference value for comparator n.
Address: F000_1000h base + 20h (16d × i), where i=0d to 1d
Bit 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
R
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
MTBDWT_COMPn field descriptions
Field
Description
COMP
Reference value for comparison
If MTBDWT_COMP0 is used for a data value comparator and the access size is byte or halfword, the data
value must be replicated across all appropriate byte lanes of this register. For example, if the data is a
byte-sized "x" value, then COMP[31:24] = COMP[23:16] = COMP[15:8] = COMP[7:0] = "x". Likewise, if the
data is a halfword-size "y" value, then COMP[31:16] = COMP[15:0] = "y".
15.3.2.3 MTB_DWT Comparator Mask Register (MTBDWT_MASKn)
The MTBDWT_MASKn registers define the size of the ignore mask applied to the
reference address for address range matching by comparator n. Note the format of this
mask field is different than the MTB_MASTER[MASK].
Address: F000_1000h base + 24h (16d × i), where i=0d to 1d
Bit 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
R
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
MTBDWT_MASKn field descriptions
Field
Description
31–5
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
MASK
MASK
The value of the ignore mask, 0-31 bits, is applied to address range matching. MASK = 0 is used to
include all bits of the address in the comparison, except if MASK = 0 and the comparator is configured to
watch instruction fetch addresses, address bit [0] is ignored by the hardware since all fetches must be at
least halfword aligned. For MASK != 0 and regardless of watch type, address bits [x-1:0] are ignored in the
address comparison.
Using a mask means the comparator matches on a range of addresses, defined by the unmasked most
significant bits of the address, bits [31:x]. The maximum MASK value is 24, producing a 16 Mbyte mask.
An attempted write of a MASK value > 24 is limited by the MTBDWT hardware to 24.
Table continues on the next page...
Chapter 15 Micro Trace Buffer (MTB)
MKW01Z128 MCU Reference Manual, Rev. 3, 04/2016
Freescale Semiconductor, Inc.
277
Содержание MKW01Z128
Страница 7: ...MKW01xxRM Reference Manual Rev 3 04 2016 viii Freescale Semiconductor Inc...
Страница 11: ...MKW01xxRM Reference Manual Rev 3 04 2016 xii Freescale Semiconductor Inc...
Страница 31: ...MKW01Z128 Pins and Connections MKW01xxRM Reference Manual Rev 3 04 2016 2 8 Freescale Semiconductor Inc...
Страница 129: ...MKW01Z128 Transceiver MCU SPI Interface MKW01xxRM Reference Manual Rev 3 04 2016 8 6 Freescale Semiconductor Inc...
Страница 130: ...MKW01xxRM Reference Manual Rev 3 04 2016 Freescale Semiconductor Inc A 1 Appendix A MKW01Z128 MCU Reference Manual...
Страница 131: ...MKW01Z128 MCU Reference Manual MKW01xxRM Reference Manual Rev 3 04 2016 A 2 Freescale Semiconductor Inc...
Страница 133: ...MKW01Z128 MCU Reference Manual Rev 3 04 2016 2 Freescale Semiconductor Inc...
Страница 221: ...Private Peripheral Bus PPB memory map MKW01Z128 MCU Reference Manual Rev 3 04 2016 90 Freescale Semiconductor Inc...
Страница 233: ...Module clocks MKW01Z128 MCU Reference Manual Rev 3 04 2016 102 Freescale Semiconductor Inc...
Страница 255: ...Module operation in low power modes MKW01Z128 MCU Reference Manual Rev 3 04 2016 124 Freescale Semiconductor Inc...
Страница 279: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 148 Freescale Semiconductor Inc...
Страница 305: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 174 Freescale Semiconductor Inc...
Страница 325: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 194 Freescale Semiconductor Inc...
Страница 379: ...Application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 248 Freescale Semiconductor Inc...
Страница 387: ...Memory map register descriptions MKW01Z128 MCU Reference Manual Rev 3 04 2016 256 Freescale Semiconductor Inc...
Страница 465: ...Functional Description MKW01Z128 MCU Reference Manual Rev 3 04 2016 334 Freescale Semiconductor Inc...
Страница 501: ...Initialization Application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 370 Freescale Semiconductor Inc...
Страница 513: ...Interrupts MKW01Z128 MCU Reference Manual Rev 3 04 2016 382 Freescale Semiconductor Inc...
Страница 517: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 386 Freescale Semiconductor Inc...
Страница 611: ...Application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 480 Freescale Semiconductor Inc...
Страница 633: ...CMP Trigger Mode MKW01Z128 MCU Reference Manual Rev 3 04 2016 502 Freescale Semiconductor Inc...
Страница 643: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 512 Freescale Semiconductor Inc...
Страница 671: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 540 Freescale Semiconductor Inc...
Страница 803: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 672 Freescale Semiconductor Inc...
Страница 843: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 712 Freescale Semiconductor Inc...
Страница 877: ...Initialization application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 746 Freescale Semiconductor Inc...