NXP Semiconductors MKL25Z128VLK4 - Page 317

MTBDWT memory map (continued)
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
F000_1FCC Device Type Identifier Register (MTBDWT_DEVICETYPID) 32 R 0000_0004h 19.32.8/325
F000_1FD0 Peripheral ID Register (MTBDWT_PERIPHID4) 32 R See section 19.32.9/326
F000_1FD4 Peripheral ID Register (MTBDWT_PERIPHID5) 32 R See section 19.32.9/326
F000_1FD8 Peripheral ID Register (MTBDWT_PERIPHID6) 32 R See section 19.32.9/326
F000_1FDC Peripheral ID Register (MTBDWT_PERIPHID7) 32 R See section 19.32.9/326
F000_1FE0 Peripheral ID Register (MTBDWT_PERIPHID0) 32 R See section 19.32.9/326
F000_1FE4 Peripheral ID Register (MTBDWT_PERIPHID1) 32 R See section 19.32.9/326
F000_1FE8 Peripheral ID Register (MTBDWT_PERIPHID2) 32 R See section 19.32.9/326
F000_1FEC Peripheral ID Register (MTBDWT_PERIPHID3) 32 R See section 19.32.9/326
F000_1FF0 Component ID Register (MTBDWT_COMPID0) 32 R See section
19.32.10/
326
F000_1FF4 Component ID Register (MTBDWT_COMPID1) 32 R See section
19.32.10/
326
F000_1FF8 Component ID Register (MTBDWT_COMPID2) 32 R See section
19.32.10/
326
F000_1FFC Component ID Register (MTBDWT_COMPID3) 32 R See section
19.32.10/
326
19.32.1 MTB DWT Control Register (MTBDWT_CTRL)
The MTBDWT_CTRL register provides read-only information on the watchpoint
configuration for the MTB_DWT.
Address: F000_1000h base + 0h offset = F000_1000h
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
NUMCMP DWTCFGCTRL
W
Reset
0 0 1 0 1 1 1 1 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_CTRL field descriptions
Field Description
31–28
NUMCMP
Number of comparators
The MTB_DWT implements two comparators.
27–0
DWTCFGCTRL
DWT configuration controls
This field is hardwired to 0xF00_0000, disabling all the remaining DWT functionality. The specific fields
and their state are:
MTBDWT_CTRL[27] = NOTRCPKT = 1, trace sample and exception trace is not supported
Table continues on the next page...
Chapter 19 Micro Trace Buffer (MTB)
KL25 Sub-Family Reference Manual, Rev. 3, September 2012
Freescale Semiconductor, Inc. 317