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AM29F080B-150ECB Datasheet(PDF) 9 Page - Advanced Micro Devices |
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AM29F080B-150ECB Datasheet(HTML) 9 Page - Advanced Micro Devices |
9 / 37 page Am29F080B 9 P R E L I M I NARY Table 2. Am29F080B Sector Address Table Note: All sectors are 64 Kbytes in size. Autoselect Mode The autoselect mode provides manufacturer and de- vice identification, and sector protection verification, through identifier codes output on DQ7–DQ0. This mode is primarily intended for programming equipment to automatically match a device to be programmed with its corresponding programming algorithm. However, the autoselect codes can also be accessed in-system through the command register. When using programming equipment, the autoselect mode requires VID (11.5 V to 12.5 V) on address pin A9. Address pins A6, A1, and A0 must be as shown in Autoselect Codes (High Voltage Method) table. In addi- tion, when verifying sector protection, the sector ad- dress must appear on the appropriate highest order address bits. Refer to the corresponding Sector Ad- dress Tables. The Command Definitions table shows the remaining address bits that are don’t care. When all necessary bits have been set as required, the program- ming equipment may then read the corresponding identifier code on DQ7–DQ0. To access the autoselect codes in-system, the host system can issue the autoselect command via the command register, as shown in the Command Defini- tions table. This method does not require VID. See “Command Definitions” for details on using the autose- lect mode. Sector A19 A18 A17 A16 Address Range SA0 0 000 000000h–00FFFFh SA1 0 0 0 1 010000h–01FFFFh SA2 0 0 1 0 020000h–02FFFFh SA3 0 0 1 1 030000h–03FFFFh SA4 0 1 0 0 040000h–04FFFFh SA5 0 1 0 1 050000h–05FFFFh SA6 0 1 1 0 060000h–06FFFFh SA7 0 1 1 1 070000h–07FFFFh SA8 1 0 0 0 080000h–08FFFFh SA9 1 0 0 1 090000h–09FFFFh SA10 1 0 1 0 0A0000h–0AFFFFh SA11 1 0 1 1 0B0000h–0BFFFFh SA12 1 1 0 0 0C0000h–0CFFFFh SA13 1 1 0 1 0D0000h–0DFFFFh SA14 1 1 1 0 0E0000h–0EFFFFh SA15 1 1 1 1 0F0000h–0FFFFFh |
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