PSD4235G2V_09 Datasheet, PDF (34/124 Pages) STMicroelectronics – Flash in-system programmable (ISP) peripherals for 16-bit MCUs (3.3 V supply)

Detailed operation
PSD4235G2V
9. The MCU cannot invoke these instructions while executing code from the same Flash memory as that for which the
instruction is intended. The MCU must fetch, for example, the code from the secondary Flash memory when reading the
Sector Protection Status of the primary Flash memory.
10. Additional sectors to be erased must be written at the end of the Sector Erase instruction within 80µs.
11. The system may perform READ and Program cycles in non-erasing sectors, read the Flash ID or read the Sector
Protection Status when in the Suspend Sector Erase mode. The Suspend Sector Erase instruction is valid only during a
Sector Erase cycle.
12. The Resume Sector Erase instruction is valid only during the Suspend Sector Erase mode.
13. The Unlock Bypass instruction is required prior to the Unlock Bypass Program instruction.
14. The Unlock Bypass Reset Flash instruction is required to return to reading memory data when the device is in the Unlock
Bypass mode.
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