![NXP Semiconductors Kinetis KE1xZ256 Reference Manual Download Page 640](http://html1.mh-extra.com/html/nxp-semiconductors/kinetis-ke1xz256/kinetis-ke1xz256_reference-manual_1721813640.webp)
information into an attached SRAM and allows bus masters to access the memory. The
MTB ensures that trace information write accesses to the SRAM take priority over
accesses from the AHB-Lite interface.
The MTB includes trace control registers for configuring and triggering the MTB
functions. The MTB also supports triggering via TSTART and TSTOP control functions
in the MTB DWT module.
31.6 Debug in low-power modes
In low-power modes in which the debug modules are kept static or powered off, the
debugger cannot gather any debug data for the duration of the low-power mode.
• If the debugger is held static, the debug port returns to full functionality as soon as
the low-power mode exits and the system returns to a state with active debug.
• If the debugger logic is powered off, the debugger is reset on recovery and must be
reconfigured once the low-power mode is exited.
The active debug will prevent the chip from entering low-power mode. In case the chip is
already in low-power mode, a debug request from MDM-AP control register will wake
the chip from low-power mode.
31.7 Debug and security
When flash security is enabled, the debug port capabilities are limited in order to prevent
exploitation of secure data. In the secure state, the debugger still has access to the status
register and can determine the current security state of the device. In the case of a secure
device, the debugger has the capability of performing only a mass erase operation.
Debug in low-power modes
Kinetis KE1xZ256 Sub-Family Reference Manual, Rev. 3, 07/2018
640
NXP Semiconductors
Summary of Contents for Kinetis KE1xZ256
Page 2: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 2 NXP Semiconductors...
Page 178: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 178 NXP Semiconductors...
Page 356: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 356 NXP Semiconductors...
Page 410: ...Interrupts Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 410 NXP Semiconductors...
Page 604: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 604 NXP Semiconductors...
Page 634: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 634 NXP Semiconductors...
Page 674: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 674 NXP Semiconductors...
Page 820: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 820 NXP Semiconductors...
Page 1030: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1030 NXP Semiconductors...
Page 1052: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1052 NXP Semiconductors...
Page 1066: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1066 NXP Semiconductors...
Page 1268: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1268 NXP Semiconductors...
Page 1314: ...Usage Guide Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1314 NXP Semiconductors...
Page 1316: ...Kinetis KE1xZ256 Sub Family Reference Manual Rev 3 07 2018 1316 NXP Semiconductors...