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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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P320DB90VI 데이터시트(PDF) 19 Page - Advanced Micro Devices |
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P320DB90VI 데이터시트(HTML) 19 Page - Advanced Micro Devices |
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19 / 49 page  June 13, 2005 Am29PL320D 17 SecSi ™ (Secured Silicon) Sector Flash Memory Region The SecSi (Secured Silicon) Sector feature provides a Flash memory region that enables permanent part identification through an Electronic Serial Number (ESN). The SecSi Sector is a minimum of 128 words (64 double words) in length, and uses a SecSi Sector Indicator Bit (DQ7) to indicate whether or not the SecSi Sector is locked when shipped from the factory. This bit is permanently set at the factory and cannot be changed, which prevents cloning of a factory locked part. This ensures the security of the ESN once the product is shipped to the field. Current version of de- vice has 512 words; future versions will have only 128 words. This should be considered during sys- tem design. AMD offers the device with the SecSi Sector either factory locked or customer lockable. The factory- locked version is always protected when shipped from the factory, and has the SecSi (Secured Silicon) Sec- tor Indicator Bit permanently set to a “1.” The cus- tomer-lockable version is shipped with the SecSi Sector unprotected, allowing customers to utilize the that sector in any manner they choose. The customer- lockable version has the SecSi (Secured Silicon) Sec- tor Indicator Bit permanently set to a “0.” Thus, the SecSi Sector Indicator Bit prevents customer-lockable Table 12. Primary Vendor-Specific Extended Query Addresses (Double Word Mode) Addresses (Word Mode) Data Description 40h 41h 42h 80h 82h 84h 0050h 0052h 0049h Query-unique ASCII string “PRI” 43h 86h 0031h Major version number, ASCII 44h 88h 0032h Minor version number, ASCII 45h 8Ah 0000h Address Sensitive Unlock 0 = Required, 1 = Not Required 46h 8Ch 0002h Erase Suspend 0 = Not Supported, 1 = To Read Only, 2 = To Read & Write 47h 8Eh 0001h Sector Protect 0 = Not Supported, X = Number of sectors in per group 48h 90h 0001h Sector Temporary Unprotect 00 = Not Supported, 01 = Supported 49h 92h 0001h Sector Protect/Unprotect scheme 01 = 29F040 mode, 02 = 29F016 mode, 03 = 29F400 mode, 04 = 29LV800A mode 4Ah 94h 0000h Simultaneous Operation 00 = Not Supported, 01 = Supported 4Bh 96h 0000h Burst Mode Type 00 = Not Supported, 01 = 4 Word Linear Burst, 02 = 8 Word Linear Burst, 03 = 32 Linear Burst, 04 = 4 Word Interleave Burst 4Ch 98h 0002h Page Mode Type 00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page 4Dh 9Ah 00B5h ACC (Acceleration) Supply Minimum 00h = not supported, D7–D4: volt; D3–D0: 100 millivolt. 4Eh 9Ch 00C5h ACC (Acceleration) Supply Maximum 00h = not supported, D7–D4: volt; D3–D0: 100 millivolt. 50h A0h 0000h Program Suspend 00h = not supported, 01h = supported |
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