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AM29PDL128G データシート(PDF) 44 Page - SPANSION |
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AM29PDL128G データシート(HTML) 44 Page - SPANSION |
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44 / 69 page ![]() July 29, 2002 Am29PDL128G 43 P R E L I M I NARY Legend: BA = Address of bank switching to autoselect mode, bypass mode, or erase. Determined by A21:A19, see Tables 4 and 5 for more detail. PA = Program Address (A21:A-1). Addresses latch on falling edge of WE# or CE# pulse, whichever happens later. PD = Program Data (DQ15:DQ0) written to location PA. Data latches on rising edge of WE# or CE# pulse, whichever happens first. RA = Read Address (A21:A-1). RD = Read Data (DQ15:DQ0) from location RA. SA = Sector Address (A21:A12) for verifying (in autoselect mode) or erasing. WD = Write Data. See “Configuration Register” definition for specific write data. Data latched on rising edge of WE#. X = Don’t care Notes: 1. See Table 1 for description of bus operations. 2. All values are in hexadecimal. 3. Shaded cells in table denote read cycles. All other cycles are write operations. 4. During unlock and command cycles, when lower address bits are 555 or AAAh as shown in table, address bits higher than A11 (except where BA is required) and data bits higher than DQ7 are don’t cares. 5. No unlock or command cycles required when bank is reading array data. 6. Reset command is required to return to reading array (or to erase-suspend-read mode if previously in Erase Suspend) when a bank is in autoselect mode, or if DQ5 goes high (while bank is providing status information). 7. Cycle 4 of autoselect command sequence is a read cycle. See Autoselect Command Sequence section for more information. 8. The data is 80h for factory locked and 00h for not factory locked. 9. The data is 00h for an unprotected sector group and 01h for a protected sector group. 10. Device ID must be read across cycles 4, 5, and 6. 11. System may read and program in non-erasing sectors, or enter autoselect mode, when in Program/Erase Suspend mode. Program/Erase Suspend command valid only during a sector erase operation, and requires bank address. 12. Program/Erase Resume command valid only during Erase Suspend mode, and requires bank address. 13. Command is valid when device is ready to read array data or when device is in autoselect mode. 14. ACC must be at VID during entire operation of this command. 15. Command ignored during any Embedded Program, Embedded Erase, or Suspend operation. 16. Unlock Bypass Entry command required prior to any Unlock Bypass operation. Unlock Bypass Reset command is required to return to reading array. Table 16. Memory Array Command Definitions (x16 Mode) Command (Notes) Bus Cycles (Notes 1–4) Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data Read (5) 1 RA RD Reset (6) 1 XXX F0 Autoselect (Note 7) Manufacturer ID 4 555 AA 2AA 55 555 90 (BA)X00 01 Device ID (10) 6 555 AA 2AA 55 555 90 (BA)X01 7E (BA)X0E 0D (BA)X0F 00 SecSi Sector Factory Protect 4 555 AA 2AA 55 555 90 X03 (see Note 8) Sector Group Protect Verify (9) 4 555 AA 2AA 55 555 90 SA02 XX00/ XX01 Program 4 555 AA 2AA 55 555 90 PA PD Chip Erase 6 AAA AA 555 55 AAA 80 AAA AA 555 55 AAA 10 Sector Erase 6 AAA AA 555 55 AAA 80 AAA AA 555 55 SA 30 Program/Erase Suspend (11) 1 BA B0 Program/Erase Resume (12) 1 BA 30 CFI Query (13) 1 55 98 Accelerated Program (15) 2 XX A0 PA PD Configuration Register Verify 4 AAA AA 555 55 (BA)AAA C6 (BA)XX RD Configuration Register Write (16) 4 AAA AA 555 55 AAA D0 XX WD Unlock Bypass Entry (17) 3 AAA AA 555 55 AAA 20 Unlock Bypass Program (17) 2 XX A0 PA PD Unlock Bypass Erase (17) 2 XX 80 XX 10 Unlock Bypass CFI (13, 17) 1 XX 98 Unlock Bypass Reset (17) 2 XX 90 XX 00 |
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