STMicroelectronics STM32WL5 Series - Page 1041

RM0453 Rev 5 1041/1450
RM0453 Tamper and backup registers (TAMP)
1048
33.6.4 TAMP filter control register (TAMP_FLTCR)
Address offset: 0x0C
Backup domain reset value: 0x0000 0000
System reset: not affected
Bits 31:8 Reserved, must be kept at reset value.
Bit 7 ITAMP8NOER: Internal Tamper 8 no erase
0: Internal Tamper 8 event erases the backup registers.
1: Internal Tamper 8 event does not erase the backup registers
(1)
.
Bit 6 Reserved, must be kept at reset value.
Bit 5 ITAMP6NOER: Internal Tamper 6 no erase
0: Internal Tamper 6 event erases the backup registers.
1: Internal Tamper 6 event does not erase the backup registers
(1)
.
Bit 4 ITAMP5NOER: Internal Tamper 5 no erase
0: Internal Tamper 5 event erases the backup registers.
1: Internal Tamper 5 event does not erase the backup registers
(1)
.
Bit 3 Reserved, must be kept at reset value.
Bit 2 ITAMP3NOER: Internal Tamper 3 no erase
0: Internal Tamper 3 event erases the backup registers.
1: Internal Tamper 3 event does not erase the backup registers
(1)
.
Bit 1 Reserved, must be kept at reset value.
Bit 0 Reserved, must be kept at reset value.
1. and the device secrets erased by tamp_erase signal (refer to Table 218: TAMP interconnection).
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
1514131211109876543210
Res. Res. Res. Res. Res. Res. Res. Res.
TAMP
PUDIS
TAMPPR CH
[1:0]
TAMPFLT
[1:0]
TAMPFREQ
[2:0]
rw rw rw rw rw rw rw rw
Bits 31:8 Reserved, must be kept at reset value.
Bit 7 TAMPPUDIS: TAMP_INx pull-up disable
This bit determines if each of the TAMPx pins are precharged before each sample.
0: Precharge TAMP_INx pins before sampling (enable internal pull-up)
1: Disable precharge of TAMP_INx pins.