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A Trusted Platform Module (TPM) is a secure cryptoprocessor that implements the ISO/IEC 11889 standard. Common uses are verifying that the boot process starts from a trusted combination of hardware and software and storing disk encryption keys. A TPM 2.0 implementation is part of the Windows 11 system requirements. [1]
In embedded systems, a board support package (BSP) is the layer of software containing hardware-specific boot loaders, device drivers and other routines that allow a given embedded operating system, for example a real-time operating system (RTOS), to function in a given hardware environment (a motherboard), integrated with the embedded operating system.
The 3 series has replaced the 5 series as the budget line. Dell has also since dropped the E from the Latitude line (due to switching to a USB C/Thunderbolt dock system, rather than the e-Port analog pin-system docks), and the models are delineated by number now, e.g.: Latitude 5480, 5570.
The PSP is an integral part of the boot process, without which the x86 cores would never be activated. On-chip phase Firmware located directly on the PSP chip sets up the ARM CPU, verifies the integrity of the SPI ROM, using various data structures locates the off-chip firmware (AGESA) from the SPI ROM, and copies it over to internal PSP memory.