EXTSCN

DLRTC

SECST

INTSCN

SECALM

SECDIAG

EXTS_EN0 : External Sensor Enable for input/output pair 0.
bits : 0 - 0 (1 bit)

Enumeration:

End of enumeration elements list.

EXTS_EN1 : External Sensor Enable for input/output pair 1.
bits : 1 - 1 (1 bit)

Enumeration:

End of enumeration elements list.

EXTS_EN2 : External Sensor Enable for input/output pair 2.
bits : 2 - 2 (1 bit)

Enumeration:

End of enumeration elements list.

EXTS_EN3 : External Sensor Enable for input/output pair 3.
bits : 3 - 3 (1 bit)

Enumeration:

End of enumeration elements list.

EXTS_EN4 : External Sensor Enable for input/output pair 4.
bits : 4 - 4 (1 bit)

Enumeration:

End of enumeration elements list.

EXTS_EN5 : External Sensor Enable for input/output pair 5.
bits : 5 - 5 (1 bit)

Enumeration:

End of enumeration elements list.

EXTCNT : External Sensor Error Counter. These bits set the number of external sensor accepted mismatches that have to occur within a single bit period before an external sensor alarm is triggered.
bits : 16 - 20 (5 bit)

EXTFRQ : External Sensor Frequency. These bits define the frequency at which the external sensors are clocked to/from the EXTS_IN and EXTS_OUT pair.
bits : 21 - 23 (3 bit)

Enumeration:

End of enumeration elements list.

DIVCLK : Clock Divide. These bits are used to divide the 8KHz input clock. The resulting divided clock is used for all logic within the Security Monitor Block. Note: If the input clock is divided with these bits, the error count threshold table and output frequency will be affected accordingly with the same divide factor.
bits : 24 - 26 (3 bit)

Enumeration:

End of enumeration elements list.

BUSY : Busy. This bit is set to 1 by hardware after EXTSCN register is written to. This bit is automatically cleared to 0 after this register information has been transferred to the security monitor domain.
bits : 30 - 30 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

LOCK : Lock Register. Once locked, the EXTSCN register can no longer be modified. Only a battery disconnect will clear this bit. VBAT powers this register.
bits : 31 - 31 (1 bit)

Enumeration:

End of enumeration elements list.

DLRTC : DRS Log RTC Value. This register contains the 32 bit value in the RTC second register when the last DRS event occured.
bits : 0 - 31 (32 bit)

EXTSRS : External Sensor Control Register Status.
bits : 0 - 0 (1 bit)

Enumeration:

End of enumeration elements list.

INTSRS : Internal Sensor Control Register Status.
bits : 1 - 1 (1 bit)

Enumeration:

End of enumeration elements list.

SECALRS : Security Alarm Register Status.
bits : 2 - 2 (1 bit)

Enumeration:

End of enumeration elements list.

SHIELD_EN : Die Shield Enable.
bits : 0 - 0 (1 bit)

Enumeration:

End of enumeration elements list.

TEMP_EN : Temperature Sensor Enable.
bits : 1 - 1 (1 bit)

Enumeration:

End of enumeration elements list.

VBAT_EN : Battery Monitor Enable.
bits : 2 - 2 (1 bit)

Enumeration:

End of enumeration elements list.

LOTEMP_SEL : Low Temperature Detection Select.
bits : 16 - 16 (1 bit)

Enumeration:

End of enumeration elements list.

VCORELOEN : VCORE Undervoltage Detect Enable.
bits : 18 - 18 (1 bit)

Enumeration:

End of enumeration elements list.

VCOREHIEN : VCORE Overvoltage Detect Enable.
bits : 19 - 19 (1 bit)

Enumeration:

End of enumeration elements list.

VDDLOEN : VDD Undervoltage Detect Enable.
bits : 20 - 20 (1 bit)

Enumeration:

End of enumeration elements list.

VDDHIEN : VDD Overvoltage Detect Enable.
bits : 21 - 21 (1 bit)

Enumeration:

End of enumeration elements list.

VGLEN : Voltage Glitch Detection Enable.
bits : 22 - 22 (1 bit)

Enumeration:

End of enumeration elements list.

LOCK : Lock Register. Once locked, the INTSCN register can no longer be modified. Only a battery disconnect will clear this bit. VBAT powers this register.
bits : 31 - 31 (1 bit)

Enumeration:

End of enumeration elements list.

DRS : Destructive Reset Trigger. Setting this bit will generate a DRS. This bit is self-cleared by hardware.
bits : 0 - 0 (1 bit)

Enumeration:

End of enumeration elements list.

KEYWIPE : Key Wipe Trigger. Set to 1 to initiate a wipe of the AES key register. It does not reset the part, or log a timestamp. AES and DES registers are not affected by this bit. This bit is automatically cleared to 0 after the keys have been wiped.
bits : 1 - 1 (1 bit)

Enumeration:

End of enumeration elements list.

SHIELDF : Die Shield Flag.
bits : 2 - 2 (1 bit)

Enumeration:

End of enumeration elements list.

LOTEMP : Low Temperature Detect.
bits : 3 - 3 (1 bit)

Enumeration:

End of enumeration elements list.

HITEMP : High Temperature Detect.
bits : 4 - 4 (1 bit)

Enumeration:

End of enumeration elements list.

BATLO : Battery Undervoltage Detect.
bits : 5 - 5 (1 bit)

Enumeration:

End of enumeration elements list.

BATHI : Battery Overvoltage Detect.
bits : 6 - 6 (1 bit)

Enumeration:

End of enumeration elements list.

EXTF : External Sensor Flag. This bit is set to 1 when any of the EXTSTAT bits are set.
bits : 7 - 7 (1 bit)

Enumeration:

End of enumeration elements list.

VDDLO : VDD Undervoltage Detect Flag.
bits : 8 - 8 (1 bit)

Enumeration:

End of enumeration elements list.

VCORELO : VCORE Undervoltage Detect Flag.
bits : 9 - 9 (1 bit)

Enumeration:

End of enumeration elements list.

VCOREHI : VCORE Overvoltage Detect Flag.
bits : 10 - 10 (1 bit)

Enumeration:

End of enumeration elements list.

VDDHI : VDD Overvoltage Flag.
bits : 11 - 11 (1 bit)

Enumeration:

End of enumeration elements list.

VGL : Voltage Glitch Detection Flag.
bits : 12 - 12 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT0 : External Sensor 0 Detect. The tamper detect is only active when it is enabled. This bits needs to be cleared in software after a tamper event to re-arm the sensor.
bits : 16 - 16 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT1 : External Sensor 1 Detect. The tamper detect is only active when it is enabled. This bits needs to be cleared in software after a tamper event to re-arm the sensor.
bits : 17 - 17 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT2 : External Sensor 2 Detect. The tamper detect is only active when it is enabled. This bits needs to be cleared in software after a tamper event to re-arm the sensor.
bits : 18 - 18 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT3 : External Sensor 3 Detect. The tamper detect is only active when it is enabled. This bits needs to be cleared in software after a tamper event to re-arm the sensor.
bits : 19 - 19 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT4 : External Sensor 4 Detect. The tamper detect is only active when it is enabled. This bits needs to be cleared in software after a tamper event to re-arm the sensor.
bits : 20 - 20 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT5 : External Sensor 5 Detect. The tamper detect is only active when it is enabled. This bits needs to be cleared in software after a tamper event to re-arm the sensor.
bits : 21 - 21 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSWARN0 : External Sensor 0 Warning Ready flag. The tamper detect warning flags are set, regardless of whether the external sensors are enabled.
bits : 24 - 24 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSWARN1 : External Sensor 1 Warning Ready flag. The tamper detect warning flags are set, regardless of whether the external sensors are enabled.
bits : 25 - 25 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSWARN2 : External Sensor 2 Warning Ready flag. The tamper detect warning flags are set, regardless of whether the external sensors are enabled.
bits : 26 - 26 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSWARN3 : External Sensor 3 Warning Ready flag. The tamper detect warning flags are set, regardless of whether the external sensors are enabled.
bits : 27 - 27 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSWARN4 : External Sensor 4 Warning Ready flag. The tamper detect warning flags are set, regardless of whether the external sensors are enabled.
bits : 28 - 28 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSWARN5 : External Sensor 5 Warning Ready flag. The tamper detect warning flags are set, regardless of whether the external sensors are enabled.
bits : 29 - 29 (1 bit)

Enumeration:

End of enumeration elements list.

BORF : Battery-On-Reset Flag. This bit is set once the back up battery is conneted.
bits : 0 - 0 (1 bit)

Enumeration:

End of enumeration elements list.

SHIELDF : Die Shield Flag.
bits : 2 - 2 (1 bit)

Enumeration:

End of enumeration elements list.

LOTEMP : Low Temperature Detect.
bits : 3 - 3 (1 bit)

Enumeration:

End of enumeration elements list.

HITEMP : High Temperature Detect.
bits : 4 - 4 (1 bit)

Enumeration:

End of enumeration elements list.

BATLO : Battery Undervoltage Detect.
bits : 5 - 5 (1 bit)

Enumeration:

End of enumeration elements list.

BATHI : Battery Overvoltage Detect.
bits : 6 - 6 (1 bit)

Enumeration:

End of enumeration elements list.

DYNF : Dynamic Sensor Flag. This bit is set to 1 when any of the EXTSTAT bits are set.
bits : 7 - 7 (1 bit)

Enumeration:

End of enumeration elements list.

AESKT : AES Key Transfer. This bit is set to 1 when AES Key has been transferred from the TRNG to the battery backed AES key register. This bit can only be reset by a BOR.
bits : 8 - 8 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT0 : External Sensor 0 Detect.
bits : 16 - 16 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT1 : External Sensor 1 Detect.
bits : 17 - 17 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT2 : External Sensor 2 Detect.
bits : 18 - 18 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT3 : External Sensor 3 Detect.
bits : 19 - 19 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT4 : External Sensor 4 Detect.
bits : 20 - 20 (1 bit)

Enumeration:

End of enumeration elements list.

EXTSTAT5 : External Sensor 5 Detect.
bits : 21 - 21 (1 bit)

Enumeration:

End of enumeration elements list.