SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The AM263x Power Management System contains a Power Management Unit (PMU), which includes reference voltage generators, power rail monitors that can trigger a device reset, and a threshold based temperature monitor. The AM263x also contains an internal BIAS LDO, which generates a 1.8-V output on the VDDS18_LDO pin, which should be externally connected to VDDS18 for IO Bias.
Figure 6-9 shows the different power supply domains in the AM263x . The AM263x has the following power domains, some of which must be externally supplied and some of which are internally generated by LDO modules in the device.
As a power saving option, the AM263x supports clock gating for all the peripherals as well as including a power down feature for On-Chip Static Random Access Memory (OCSRAM) banks. Details of IP clock gating can be found in Section 6.2.3.1 and the power down mode of OCSRAM is explained in Section 6.2.3.2.