SPRZ436H October 2015 – July 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
CSI2 LDO Needs to Be Disabled when Module Is Powered On
High
Enabling CSI2 LDO shorts it to core supply. It is crucial the 2 CSI2 LDOs on the device are disabled if CSI-2 module is powered on (0x4845 B304 | 0x4845 B384 [28:27] = 0x1) or in ULPS (0x4845 B304 | 0x4845 B384 [28:27] = 0x2) mode. Common concerns include: high current draw on the module supply in active mode.
Errata does not apply when CSI-2 module is powered off (0x4845 B304 | 0x4845 B384 [28:27] = 0x0).
CSI-2 module enabled:
Set the following register bits to disable the LDO:
AM571x SR 1.0
TDA2Ex (23mm): 1.0
AM571x: 1.0
DRA72x: 1.0