srf55v02s Infineon Technologies Corporation, srf55v02s Datasheet - Page 8

• Manufacturer Part Number: srf55v02s
• Description: Security & Chip Card Ics My-d Vicinity
• Manufacturer: Infineon Technologies Corporation

3.1
my-d vicinity consists of a EEPROM memory unit, an analog interface for contactless energy and
data transmission, a control and a crypto unit.
Figure 5 Block diagram of my-d vicinity
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Short Product Information
Analog Contactless Interface consists of:
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Operational mode
The access to the memory depends on the actual mode of my-d vicinity; the memory is
accessed according to plain or protected mode when the VICC is selected.
Authentication Unit (optional use)
Generates random numbers, checks and calculates message authentication code (MAC).
Memory Unit
320 bytes organised in 32 pages with 8 + 2 bytes each.
Control Unit
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Rectifier
Voltage Regulator
Power on Reset
Modulator / Demodulator
Clock Extractor
Decoding and execution of the commands
Anticollision method complying to ISO/IEC 15693. It allows the recognition of several
labels in the field which may be selected and operated in sequence.
Access to key-protected sectors is only permitted after authentication with an appropriate
key. Only one sector is opened within a session. One sector is optionally configurable
without key protection and authentication.
Memory access to the pages according to the individual access conditions programmed
for every page and every key
Circuit Description
LB
LA
Power Circuit
Rectifier
Clock Extractor
Power on Reset
Voltage Regulator
Contactless
Interface
Analog
Data
Power
Clock
8 / 10
Operational
IO
Mode
Command
Anticollision
Authentication
Control Unit
Unit
Authentication
Memory Unit
my-d vicinity
SRF 55V02S
Memory
Access
2002-07-30