AT88SC3216CRF-MVB1G Atmel, AT88SC3216CRF-MVB1G Datasheet - Page 39

• Manufacturer Part Number: AT88SC3216CRF-MVB1G
• Description: CRYPTOMEMORY 32KBIT 16ZONE MVB
• Manufacturer: Atmel
• Series: CryptoMemory®, CryptoRF®r

Specifications of AT88SC3216CRF-MVB1G

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO1444-2, 1444-3, 32-kbits
• Package / Case: MVB Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.9.
6.9.1. Operation
5276C–RFID–3/09
Write System Zone Command [$c4]
The Write System Zone command writes data to the configuration memory.
The Write System Zone command writes data into the configuration memory. As each byte is clocked in to the memory
the lower bits of the address are internally incremented. The upper address bits are not incremented, so the page
address remains constant.
Write operations cannot cross page boundaries; a Write System Zone command can only write data bytes within a
single physical memory page. Attempts to write beyond the end of the page boundary will wrap to the beginning of the
same page. Only PICCs in the Active State are permitted to answer this command.
If Authentication or Encryption Communication Security is active the DATA bytes written to the password (PW)
registers are encrypted; no other bytes are encrypted. In the Normal Communication Security mode none of the bytes
are encrypted.
The Write System Zone command includes an automatic data verification function when used on 88RF PICCs. After
the EEPROM write is complete the data verification logic reads the new EEPROM contents and compares it to the data
received in the Write System Zone command. If the data does not match then the PICC returns a NACK response with
$ED in the status byte. If the data matches, the PICC returns an ACK response.
Echo Command >
PARAM = $00 >
Command >
AT88SC0808/1616/3216/6416CRF, AT88RF04C
CID
DATA “L+1”
DATA “L”
PARAM
DATA 1
DATA 2
Reader
……….
ADDR
CRC1
CRC2
“L”
$4
CID
ACK/NACK
STATUS
CRC1
CRC2
PICC
$4
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