adsp-21535 STMicroelectronics, adsp-21535 Datasheet - Page 16

• Manufacturer Part Number: adsp-21535
• Description: Dsm Digital Signal Processor System Memory For Analog Devices Dsps 3.3v Supply
• Manufacturer: STMicroelectronics

DSM2150F5V
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10. DSP writes command sequence to initial segment to be erased, then writes the byte 30h to additional sectors to be erased. 30h
11. The system may perform READ and Program cycles in non-erasing sectors, read the Flash ID or read the Sector Protect Status,
12. The Resume Sector Erase instruction sequence is valid only during the Suspend Sector Erase Mode.
13. The Unlock Bypass instructions 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 Unlock Bypass Mode.
6. The Reset Flash instruction is required to return to the normal Read Array Mode if the Error Flag Bit (DQ5) goes High, or after read-
7. The DSP cannot invoke this instruction sequence while executing code from the same Flash memory as that for which the instruc-
8. The data is 00h for an unprotected sector, and 01h for a protected sector. In the fourth cycle, the Sector Select is active, and (A1,A0)
9. Directing this command to any individual active Flash memory segment (FS0 - FS7) will invoke the bulk erase of all eight Flash
ing the Flash Identifier or after reading the Sector Protection Status.
tion sequence is intended. The DSP must fetch, for example, the code from the DSP SRAM when reading the Flash memory Iden-
tifier or Sector Protection Status.
= (1,0)
memory sectors. Likewise, directing command to any Secondary Flash sector (CSBOOT0-3) will invoke erase of all four sectors.
must be addressed to one of the other Flash memory segments (FS0-7 or CSBOOT0-3) for each additional segment (write 30h to
any address within a desired sector). No more time than t
mands.
when in the Suspend Sector Erase Mode. The Suspend Sector Erase instruction sequence is valid only during a Sector Erase cycle.
TIMEOUT
can elapse between subsequent additional sector erase com-