Part Number: TDA2P-ACD
Other Parts Discussed in Thread: TPS65917-Q1
Hello colelagues,
My customer is facing the issue with TDA2P-ACD device:
An issue we have encountered with the TI TDA2PSXVQACDQ1.
According to the model number and its detailed explanation in the datasheet[1], the MPU is expected to support a maximum frequency of 1500 MHz. The model breakdown is as follows:
TDA2PS: ADAS 2nd Generation Super Tier
X: ADAS Superset
V: 1500 MHz maximum MPU frequency
Q: Full temperature range: -40°C to 125°C
We understand that there are five MPU Operating Performance Points (OPP) levels:
MPU_OPP_LOW
MPU_OPP_NOM
MPU_OPP_OD
MPU_OPP_HIGH
MPU_OPP_PLUS
Initially, we read the required voltages for the respective OPP levels and then accordingly set up our PMIC output.
Upon reading the CTRL_WKUP_STD_FUSE_DIE_ID_2 register, which is part of the chip's eFuse configuration on the OCP interface, with an efuse_offset of 0x020c, an efuse_mask of 0xf80000, and an efuse_shift of 19, we retrieved the value 21.
This leads us to understand that this MPU is only capable of operating at the MPU_OPP_NOM level, which corresponds to a frequency of 1000MHz.
We have not employed any drivers for the PMIC LP87565, but have instead manually set up voltages based on the values we obtained for MPU_OPP_XXXX.
Our concerns are as follows:
1- How is it that this device, supposedly capable of running at 1500MHz, is only operating at the MPU_OPP_NOM level, which is limited to 1000MHz?
2- How can we accurately assess the actual frequency capability of this device?
Thank you,
Daria
