• LVD (without POR) — 0x00
• VLLS mode wakeup — 0x00
• Other reset — a bit is set if its corresponding reset source
caused the reset
Address: 4007_F000h base + 1h offset = 4007_F001h
Bit 7 6 5 4 3 2 1 0
Read 0 0 SACKERR EZPT MDM_AP SW LOCKUP JTAG
Write
Reset
0 0 0 0 0 0 0 0
RCM_SRS1 field descriptions
Field Description
7
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
6
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
5
SACKERR
Stop Mode Acknowledge Error Reset
Indicates that after an attempt to enter Stop mode, a reset has been caused by a failure of one or more
peripherals to acknowledge within approximately one second to enter stop mode.
0 Reset not caused by peripheral failure to acknowledge attempt to enter stop mode
1 Reset caused by peripheral failure to acknowledge attempt to enter stop mode
4
EZPT
EzPort Reset
Indicates a reset has been caused by EzPort receiving the RESET command while the device is in EzPort
mode.
0 Reset not caused by EzPort receiving the RESET command while the device is in EzPort mode
1 Reset caused by EzPort receiving the RESET command while the device is in EzPort mode
3
MDM_AP
MDM-AP System Reset Request
Indicates a reset has been caused by the host debugger system setting of the System Reset Request bit
in the MDM-AP Control Register.
0 Reset not caused by host debugger system setting of the System Reset Request bit
1 Reset caused by host debugger system setting of the System Reset Request bit
2
SW
Software
Indicates a reset has been caused by software setting of SYSRESETREQ bit in Application Interrupt and
Reset Control Register in the ARM core.
0 Reset not caused by software setting of SYSRESETREQ bit
1 Reset caused by software setting of SYSRESETREQ bit
1
LOCKUP
Core Lockup
Indicates a reset has been caused by the ARM core indication of a LOCKUP event.
0 Reset not caused by core LOCKUP event
1 Reset caused by core LOCKUP event
Table continues on the next page...
Reset memory map and register descriptions
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
344 NXP Semiconductors
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