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MAX66020

ISO/IEC 14443 Type B-Compliant

1Kb Memory Fob

4 _______________________________________________________________________________________

AVAILABLE COMMANDS: DATA FIELD AFFECTED:

REQUEST (REQB)

WAKEUP (WUPB)

SLOT-MARKER

HALT (HLTB)

SELECT (ATTRIB)

DESELECT (DESELECT)

AFI, ADMINISTRATIVE DATA

(ADMINISTRATIVE DATA)

PUPI

PUPI, ADMINISTRATIVE DATA

(ADMINISTRATIVE DATA)

NETWORK

FUNCTION COMMANDS

GET SYSTEM INFORMATION

WRITE SINGLE BLOCK

LOCK BLOCK

READ SINGLE BLOCK

READ SINGLE BLOCK WITH

BLOCK SECURITY STATUS

CUSTOM READ BLOCK

WRITE AFI

LOCK AFI

GET UID

64-BIT UID, AFI, CONSTANTS

DATA OF SELECTED MEMORY BLOCK, APPLICABLE PROTECTION CONTROL REGISTER

PROTECTION CONTROL REGISTER

SELECTED MEMORY BLOCK

SELECTED MEMORY BLOCK, APPLICABLE PROTECTION CONTROL REGISTER

SELECTED MEMORY BLOCK, INTEGRITY BYTES

AFI BYTE

AFI-LOCK BYTE

64-BIT UID

MEMORY AND CONTROL

FUNCTION COMMANDS

COMMAND LEVEL:

MAX66020

Figure 2. Hierarchical Structure of ISO/IEC 14443 Type B Protocol

MSb LSb

64 57 56 49 48 45 44 37 36 1

E0h 2Bh 0h FEATURE CODE (02h) 36-BIT IC SERIAL NUMBER

Figure 3. 64-Bit UID

Unique Identification Number (UID)

Each MAX66020 contains a factory-programmed and

locked identification number that is 64 bits long

(Figure 3). The lower 36 bits are the serial number of

the chip. The next 8 bits store the device feature

code, which is 02h. Bits 45 to 48 are 0h. The code in

bit locations 49 to 56 identifies the chip manufacturer,

according to ISO/IEC 7816-6/AM1. This code is 2Bh

for Maxim. The code in the upper 8 bits is E0h. The

UID is read accessible through the Get UID and Get

System Information commands. The lower 32 bits of

the UID are transmitted in the PUPI field of the ATQB

response to the REQB, WUPB, or SLOT-MARKER

command. By default, the upper 32 bits of the UID are

factory programmed into the application data field,

which is transmitted as part of the ATQB response.

This way the master receives the complete UID in the

first response from the slave. See the

Network

Function Commands

section for details.

Detailed Memory Description

The memory of the MAX66020 is organized as 18

blocks of 8 bytes each. Figure 4 shows the memory

map. The first 16 blocks (block numbers 00h to 0Fh in

hexadecimal counting) are the user EEPROM, the area

for application-specific data. Four adjacent blocks are

referred to as a page. Blocks 00h to 03h are page 0,

blocks 04h to 07h are page 1, blocks 08h to 0Bh are

page 2, and blocks 0Ch to 0Fh are page 3.

1 2 3 4 5 6 7 8 9 ... 24 25

MAX66020 1
1Kb Memory Fob 1

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