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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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AM29DL640H Arkusz danych(PDF) 16 Page - SPANSION |
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AM29DL640H Arkusz danych(HTML) 16 Page - SPANSION |
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16 / 54 page  14 Am29DL640H June 7, 2005 To access the autoselect codes in-system, the host system can issue the autoselect command via the command register, as shown in Table 12. This method does not require V ID. Refer to the Autoselect Com- mand Sequence section for more information. Table 5. Am29DL640H Autoselect Codes, (High Voltage Method) Legend: L = Logic Low = V IL, H = Logic High = VIH, BA = Bank Address, SA = Sector Address, X = Don’t care. Description CE# OE# WE# A21 to A12 A11 to A10 A9 A8 to A7 A6 A5 to A4 A3 A2 A1 A0 DQ15 to DQ8 DQ7 to DQ0 BYTE# = VIH BYTE# = VIL Manufacturer ID: AMD LL H BA X VID XLXL L L L X X 01h Read Cycle 1 LL H BA X V ID X L X LLL H 22h X 7Eh Read Cycle 2 L H H H L 22h 02h Read Cycle 3 L H H H H 22h 01h Sector Protection Verification LL H SA X V ID XLXL L H L X X 01h (protected), 00h (unprotected) Secured Silicon Indicator Bit (DQ6, DQ7) LL H BA X VID XLXL L H H X X 81h (factory locked), 01h (customer and factory locked) |
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