SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
A Power Glitch Detect (PGD) circuit is used to detect short duration “glitches” on the core and MPU power supplies. The PGD provides a low output when no glitch is detected and a high output when a glitch is detected.
Figure 5-7 shows the PGD block diagram.
Table 5-19 summarize the PGD integration.
Module Instance | Monitored Voltage | PGD Control/Status Registers(1) |
IPGD_VDD_MCU_CORE | VDD_MCU | CTRL_MMR_VDD_MCU_GLDTC_CTRLCTRL_MMR_VDD_MCU_GLDTC_STAT |
IPGD_VDD_MCU_MEM | VDDR_MCU (SRAM) | CTRL_MMR_VDDR_MCU_GLDTC_CTRLCTRL_MMR_VDDR_MCU_GLDTC_STAT |
IPGD_VDD_CPU_CORE | VDD_CPU | CTRL_MMR_VDD_CPU_GLDTC_CTRLCTRL_MMR_VDD_CPU_GLDTC_STAT |
IPGD_VDD_MAIN_CORE | VDD_CORE | CTRL_MMR_VDD_CORE_GLDTC_CTRLCTRL_MMR_VDD_CORE_GLDTC_STAT |
IPGD_VDD_CPU_MEM | VDDR_CPU (SRAM) | CTRL_MMR_VDDR_CPU_GLDTC_CTRLCTRL_MMR_VDDR_CPU_GLDTC_STAT |
IPGD_VDD_MAIN_MEM | VDDR_CORE (SRAM) | CTRL_MMR_VDDR_CORE_GLDTC_CTRLCTRL_MMR_VDDR_CORE_GLDTC_STAT |
A flag status bit in corresponding STAT register is cleared by clearing the [30] RSTB bit in the corresponding CTRL register, see for STAT and CTRL registers for a certain PGD module.