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AT88SC1608-10WI-00 Datasheet(PDF) 5 Page - ATMEL Corporation |
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AT88SC1608-10WI-00 Datasheet(HTML) 5 Page - ATMEL Corporation |
5 / 25 page 5 AT88SC1608 0971G–SMEM–04/04 The last 1K bit of the memory is a configuration zone with specific system data, access rights, and read/write commands; it is divided into six subzones. Note: AAC: Authentication Attempts Counter PAC: Password Attempts Counter AR0 −7: Access Register for User Zone 0 to 7 Fuses FAB, CMA, and PER are nonvolatile fuses blown at the end of each card life step. Once blown, these EEPROM fuses can not be reset. • The FAB fuse is blown by Atmel prior to shipping wafers to the card manufacturer. • The CMA fuse is blown by the card manufacturer prior to shipping cards to the issuer. • The PER fuse is blown by the issuer prior to shipping cards to the end user. The fuses are read and written in the configuration zone using the address $80. Table 2. Configuration Zone Configuration $0 $1 $2 $3$4$5$6 $7 Fabrication Answer-to-Reset Lot History Code $00 Fab Code Reserved Card Manufacturer Code $08 Access AR0 AR1 AR2 AR3 AR4 AR5 AR6 AR7 $10 Reserved for Future Use $18 Authentication AAC Identification Number (Nc) $20 Cryptogram (Ci) $28 Secret Secret Seed (Gc) $30 Test Reserved for Memory Test $38 PAC Write 0 PAC Read 0 $40 PAC Write 1 PAC Read 1 $48 PAC Write 2 PAC Read 2 $50 Passwords PAC Write 3 PAC Read 3 $58 PAC Write 4 PAC Read 4 $60 PAC Write 5 PAC Read 5 $68 PAC Write 6 PAC Read 6 $70 PAC Secure Code/Write 7 PAC Read 7 $78 Table 3. Fuse Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 00 000 PER CMA FAB $80 |
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