Rainbow Electronics MAX66040 - Manual (Page 4)

MAX66040
Unique Identification Number (UID)
Each MAX66040 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 03h. Bits 45 to 48 are 0h. The code in bit loca-
tions 49 to 56 identifies the chip manufacturer, accord-
ing 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 pro-
grammed into the application data field, which is trans-
mitted 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
ISO/IEC 14443 Type B-Compliant
Secure Memory
4 _______________________________________________________________________________________
ABRIDGED DATA SHEET
AVAILABLE COMMANDS: DATA FIELD AFFECTED:
REQUEST (REQB)
WAKEUP (WUPB)
SLOT-MARKER
HALT (HLTB)
SELECT (ATTRIB)
DESELECT (DESELECT) AFI, ADMINISTRATIVE DATA
AFI, ADMINISTRATIVE DATA
(ADMINISTRATIVE DATA)
PUPI
PUPI, ADMINISTRATIVE DATA
(ADMINISTRATIVE DATA)
NETWORK
FUNCTION COMMANDS
GET SYSTEM INFORMATION 64-BIT UID, AFI, CONSTANTS
GET UID 64-BIT UID
MEMORY AND CONTROL
FUNCTION COMMANDS
COMMAND LEVEL:
MAX66040
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 (03h) 36-BIT IC SERIAL NUMBER
Figure 3. 64-Bit UID
Refer to the full data sheet.
Refer to the full data sheet for this information.