Table 3-4 Dwt Register Summary - ARM Cortex-M3 Technical Reference Manual

Name
PID2
PID3
CID0
CID1
CID2
CID3
Name
DWT_CTRL
DWT_CYCCNT
DWT_CPICNT
DWT_EXCCNT
DWT_SLEEPCNT
DWT_LSUCNT
DWT_FOLDCNT
DWT_PCSR
DWT_COMP0
DWT_MASK0
DWT_FUNCTION0
DWT_COMP1
ARM DDI 0337G
Unrestricted Access
Type Address
Read-only
0xE0002FE8
Read-only
0xE0002FEC
Read-only
0xE0002FF0
Read-only
0xE0002FF4
Read-only
0xE0002FF8
Read-only
0xE0002FFC
Data Watchpoint and Trace registers
Table 3-4 gives a summary of the Data Watchpoint and Trace (DWT) registers. For a
detailed description of the DWT registers, see Chapter 11 System Debug.
Type Address
Read/write
0xE0001000
Read/write
0xE0001004
Read/write
0xE0001008
Read/write
0xE000100C
Read/write
0xE0001010
Read/write 0xE0001014
Read/write 0xE0001018
Read-only
0xE000101C
Read/write
0xE0001020
Read/write
0xE0001024
Read/write
0xE0001028
Read/write
0xE0001030
Copyright © 2005-2008 ARM Limited. All rights reserved.
Table 3-3 Flash patch register summary (continued)
Reset value
-
-
-
-
-
-
Reset
Description
value
DWT Control Register
0x40000000
DWT Current PC Sampler Cycle Count Register
0x00000000
- DWT Current CPI Count Register
DWT Current Interrupt Overhead Count Register
-
DWT Current Sleep Count Register
-
- DWT Current LSU Count Register
- DWT Current Fold Count Register
- DWT PC Sample Register
- DWT Comparator Register
- DWT Mask Registers
DWT Function Registers
0x00000000
- DWT Comparator Register
Non-Confidential
System Control
Description
Value 0x2B
Value 0x00
Value 0x0D
Value 0xE0
Value 0x05
Value 0xB1

Table 3-4 DWT register summary

3-7