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MF1S5009DA4 数据表(PDF) 11 Page - NXP Semiconductors |
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MF1S5009DA4 数据表(HTML) 11 Page - NXP Semiconductors |
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11 / 32 page ![]() MF1S5009 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet PUBLIC Rev. 3 — 27 July 2010 189131 11 of 32 NXP Semiconductors MF1S5009 Mainstream contactless smart card IC 9.6.1 Manufacturer block This is the first data block (block 0) of the first sector (sector 0). It contains the IC manufacturer data. This block is programmed and write protected in the production test. 9.6.2 Data blocks All sectors contain 3 blocks of 16 bytes for storing data (Sector 0 contains only two data blocks and the read-only manufacturer block). The data blocks can be configured by the access bits as • read/write blocks for e.g. contactless access control or • value blocks for e.g. electronic purse applications, where additional commands like increment and decrement for direct control of the stored value are provided. An authentication command has to be carried out before any memory operation in order to allow further commands. 9.6.2.1 Value Blocks The value blocks allow to perform electronic purse functions (valid commands: read, write, increment, decrement, restore, transfer).The value blocks have a fixed data format which permits error detection and correction and a backup management. A value block can only be generated through a write operation in the value block format: • Value: Signifies a signed 4-byte value. The lowest significant byte of a value is stored in the lowest address byte. Negative values are stored in standard 2´s complement format. For reasons of data integrity and security, a value is stored three times, twice non-inverted and once inverted. • Adr: Signifies a 1-byte address, which can be used to save the storage address of a block, when implementing a powerful backup management. The address byte is stored four times, twice inverted and non-inverted. During increment, decrement, restore and transfer operations the address remains unchanged. It can only be altered via a write command. Fig 7. Manufacturer block 001aam204 15 14 13 12 11 10 9 8 7 6 5 4 3 UID Manufacturer Data Block 0/Sector 0 2 1 Byte 0 Fig 8. Value blocks 001aam205 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Byte Number 0 Adr Adr Adr Adr Value Value Value Description |
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