SPRUIV7B May 2022 – September 2023 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
POK modules are responsible for accurately detecting the voltage levels. Each module is trimmed to account for process and temperature variations. The trim values are provided by eFuse chains enabled by a POR/Reset Generator (PRG) module.
Two types of POK modules are implemented in this family of devices - POK and POK_SA. See Table 6-9 about the type of a POK and the voltage it is monitoring. More information about the two types of POKs is given further in this section.
POK Module Instance Name |
PRG Index(3) |
POK Index(1) |
Voltage Monitored | Module Type | OV/UV(2) | Description |
---|---|---|---|---|---|---|
IPOK_VDD_CORE_OV | PRG0 | 4 | VDD_CORE | POK_CORE | OV | Voltage Monitor for VDD_CORE |
IPOK_VDDA_PMIC_IN_UV | PRG0 | 3 | VMON_VSYS | POK_SA | UV | Voltage Monitor for PMIC_IN |
IPOK_VDDS_DDRIO | PRG1 | 4 | VDDS_DDR | POK_CORE | UV/OV | Voltage Monitors for DDRIO |
IPOK_VDDR_CORE | PRG1 | 3 | VDDR_CORE | POK_CORE | UV/OV | Voltage Monitors for VDDR_CORE |
IPOK_VMON_CAP_MCU_GENERAL | PRG1 | 2 | CAP_VDDS_MCU | POK_CORE | UV/OV | Voltage Monitors for MCU mid-rail |
IPOK_VDDSHV_MAIN_1P8 | PRG1 | 1 | VMON_1P8_SOC | POK_1P8 | UV/OV | Voltage Monitors for 1.8-V I/O supply in MCU |
IPOK_VDDSHV_MAIN_3P3 | PRG1 | 0 | VMON_3P3_SOC | POK_3P3 | UV/OV | Voltage Monitors for 3.3-V I/O supply in MCU |
Figure 6-6 and Figure 6-7 represent the block diagrams of the two POK types.
Vref for both POK and POK_SA types in Figure 6-6 and Figure 6-7 is supplied from POK module, see Section 6.2.5.2