NXP Semiconductors UM11227 - Tab. 160. SIM Reset Status Register (SIMRS) (Address $1800); Tab. 161. SIMRS Register Field Descriptions; SIM Register Descriptions; SIM Reset Status Register (SIMRS)

NXP Semiconductors
UM11227
NTM88 family of tire pressure monitor sensors
UM11227 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User manual Rev. 6 — 24 April 2020
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10.22.3 SIM register descriptions
10.22.3.1 SIM reset status register (SIMRS)
Table 160. SIM reset status register (SIMRS) (address $1800)
Bit 7 6 5 4 3 2 1 0
R
W
POR PIN COP ILOP ILAD PWU LVR SOFT
POR ($82) 1 0 0 0 0 0 1 0
Table 161. SIMRS register field descriptions
Field Description
7
POR
POR — Power-On Reset Bit
The POR bit indicates a power-on reset has been detected. Due to internal supplies ramping, the LVR bit
may also be set.
0 = Power-on reset not detected; Existing state retained from resets of Stop1 exit, low voltage detection,
external pin, COP, PWU, illegal opcode, illegal address, soft reset, and back-ground debugger.
1 = Power-on reset detected; Result of power-on reset.
6
PIN
PIN — External PIN Reset Bit
The PIN bit indicates an external reset has been detected on the RST_B pin.
0 = External reset not detected; Result of power-on reset; Existing state retained from resets of Stop1 exit,
low voltage detection, external pin, COP, PWU, illegal opcode, illegal address, soft reset, and back-ground
debugger.
1 = External reset detected.
5
COP
COP — Computer Operating Properly Reset Bit
The COP bit indicates a COP reset has been detected.
0 = COP reset not detected; Result of power-on reset; Existing state retained from resets of Stop1 exit,
low voltage detection, external pin, COP, PWU, illegal opcode, illegal address, soft reset, and back-ground
debugger.
1 = COP reset detected.
4
ILOP
ILOP — Illegal Opcode Reset Bit
The ILOP bit indicates an illegal opcode reset has been detected.
Note: The STOP instruction is considered illegal if it has been disabled by STOPE = 0. The BGND
instruction is considered illegal if Active Background mode has been disabled by ENBDM = 0.
0 = Illegal opcode reset not detected; Result of power-on reset; Existing state retained from resets of Stop1
exit, low voltage detection, external pin, COP, PWU, illegal opcode, illegal address, soft reset, and back-
ground debugger.
1 = Illegal opcode reset detected.
3
ILAD
ILAD — Illegal Address Reset Bit
The ILAD bit indicates an illegal address reset has been detected.
0 = Illegal address reset not detected; Result of power-on reset; Existing state retained from resets of Stop1
exit, low voltage detection, external pin, COP, PWU, illegal opcode, illegal address, soft reset, and back-
ground debugger.
1 = Illegal address reset detected.