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ATA555811-PAE Datasheet(PDF) 5 Page - ATMEL Corporation |
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ATA555811-PAE Datasheet(HTML) 5 Page - ATMEL Corporation |
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5 / 42 page  5 4681C–RFID–09/05 ATA5558 [Preliminary] A valid Write command can be used for programming a data block of 33 bits – including the associated lock bit – into an addressed location of either memory section. Once locked (lock bit = 1), the entire block including the lock bit itself can no longer be reprogrammed selectively. The system memory section is situated at the upper end of the (6-bit) memory address range and contains all system parameters and configuration settings. This area has restricted access (see Figure 2-5 on page 7) and the majority of blocks can only be read or written after the suc- cessful execution of the appropriate Password Login command (see Table 7-1 on page 24). All the configuration settings are allocated in block 63 (see Figure 2-7 on page 9) and the pass- word protection security information in block 62 (see Figure 2-6 on page 7). 2.6.2 Traceability Data The traceability information is programmed and locked into the traceability blocks (59-61) by Atmel during the production test. Figure 2-4. Tag ID and Traceability Structure IC code 4-digit Atmel IC reference number, e.g. ’5558’ ACL Allocation class as defined in ISO/IEC TDR 15963-1 = E0h MFC Manufacturer code of Atmel Corp. as defined in ISO/IEC 7816-6/AM1 = 15h ICR 4-bit Atmel IC revision code DPW 18-bit binary encoded die on wafer Wafer# 5-bit binary wafer number Lot ID 9-digit lot number RFU Reserved for Future Use 7 ............. 0 15 ......... 8 31 ................................. 16 7... 4 30 .............. 26 3 ... 0 25 ........................ 8 15 ..................... 0 31 ................... 16 TagID TagID(msb)...........TagID(msb-16) TagID(msb-17)........TagID(msb-31) Block 57 Block 56 Anticollison detection starts with this bit Block 58 Traceability MFC ICR Block 60 Block 59 ACL LotID die on wafer 18 bit wafer # 5bit TagID(msb-49)........TagID(msb-63) TagID(msb-32).......TagID(msb-48) TagID(msb-80)........TagID(msb-95) TagID(msb-64).......TagID(msb-79) IC code Block 61 LotID |
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