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PSD833F2 Datasheet(PDF) 28 Page - STMicroelectronics |
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PSD833F2 Datasheet(HTML) 28 Page - STMicroelectronics |
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28 / 128 page  Detailed operation PSD8XXFX 28/128 Doc ID 7833 Rev 7 Table 10. Instructions (1)(2)(3) Instruction FS0-FS7 or CSBOOT0- CSBOOT3 (4) Cycle 1 Cycle 2 Cycle 3 Cycle 4 Cycle 5 Cycle 6 Cycle 7 READ(5) 1 “READ” RD @ RA Read Main Flash ID(6) 1 AAh@ X555h 55h@ XAAAh 90h@ X555h Read identifier (A6,A1,A0 = 0,0,1) Read Sector Protection(6)(7) (8) 1 AAh@ X555h 55h@ XAAAh 90h@ X555h Read identifier (A6,A1,A0 = 0,1,0) Program a Flash Byte(8) 1 AAh@ X555h 55h@ XAAAh A0h@ X555h PD@ PA Flash Sector Erase(9)(8) 1 AAh@ X555h 55h@ XAAAh 80h@ X555h AAh@ X555h 55h@ XAAAh 30h@ SA 30h7@ next SA Flash Bulk Erase(8) 1 AAh@ X555h 55h@ XAAAh 80h@ X555h AAh@ X555h 55h@ XAAAh 10h@ X555h Suspend Sector Erase(10) 1 B0h@ XXXXh Resume Sector Erase(11) 1 30h@ XXXXh Reset(6) 1 F0h@ XXXXh Unlock Bypass 1 AAh@ X555h 55h@ XAAAh 20h@ X555h Unlock Bypass Program(12) 1 A0h@ XXXXh PD@ PA Unlock Bypass Reset(13) 1 90h@ XXXXh 00h@ XXXXh 1. All bus cycles are WRITE bus cycles, except the ones with the “READ” label 2. All values are in hexadecimal: X = Don’t Care. Addresses of the form XXXXh, in this table, must be even addresses RA = Address of the memory location to be read RD = Data read from location RA during the READ cycle PA = Address of the memory location to be programmed. Addresses are latched on the falling edge of Write Strobe (WR, CNTL0). PA is an even address for PSD in word programming mode. PD = Data word to be programmed at location PA. Data is latched on the rising edge of Write Strobe (WR, CNTL0) SA = Address of the sector to be erased or verified. The Sector Select (FS0-FS7 or CSBOOT0-CSBOOT3) of the sector to be erased, or verified, must be Active (high). 3. Only address bits A11-A0 are used in instruction decoding. 4. Sector Select (FS0 to FS7 or CSBOOT0 to CSBOOT3) signals are active high, and are defined in PSDsoft Express. 5. No Unlock or instruction cycles are required when the device is in the READ mode 6. The Reset instruction is required to return to the READ mode after reading the Flash ID, or after reading the Sector Protection Status, or if the Error flag bit (DQ5/DQ13) goes high. 7. 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)=(1,0) Obsolete Product(s) - Obsolete Product(s) |
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