MAXREADERKIT-CN Cypress Semiconductor, MAXREADERKIT-CN Datasheet - Page 36

• Manufacturer Part Number: MAXREADERKIT-CN
• Description: Memory IC Development Tools MaxReader Dev Kit (Tuned to China)
• Manufacturer: Cypress Semiconductor

Specifications of MAXREADERKIT-CN

• Rohs: yes
• Product: Development Kit
• Tool Is For Evaluation Of: WM72016
• Memory Size: 16 Kbit
• Memory Type: F-RAM with Gen-2 RFID
• Operating Supply Voltage: 5 V
• Interface Type: DSPI Serial
• Factory Pack Quantity: 1

4.5 Memory Bank Lock Instructions
The Gen2 standard defines two methodologies of locking tag memory:
For each memory bank (with the exception of the TID memory bank that is already permanently locked by the
manufacturer), three commands are available to manipulate the lock status of the respective memory bank. These
commands are:
Each memory bank has 2 lock control bits: a lock control bit, and a permalock control bit. The lock control bit is
manipulated by through the use of the G2LOCK* and G2ULOCK* commands while the permalock control bit may
only be permanently set through the G2PLOCK* command. Locked tags that are not permanently set can be unlocked
from the tag’s secured state.
Syntax
Function
Parameters
Description
Syntax
Function
Parameters
Description
4.5.1 G2LOCKKILL: Set Kill Lock
4.5.2 G2PLOCKKILL: Set Kill Permalock
1. Entire memory bank locking, and
2. USER memory bank block locking
G2LOCK*
G2PLOCK*
G2ULOCK*
G2LOCKKILL
Sets the RESERVED memory bank kill password lock bit
None
Performs the lock function on the RESERVED memory bank kill password. Prior to executing the
G2LOCKKILL command, the tag must be in the secured state. A tag whose access password is null
will automatically advance from the open state to the secured state during arbitration; a tag whose
access password is non-zero remains in the open state until the tag has successfully transitioned to
the secured state – this is done through the G2ACC command accompanied with the valid respective
passwords. Once the kill password has been locked, it will no longer be readable by the interrogator.
The kill password may be unlocked while the tag is in the secured state through the G2ULOCKKILL
command.
G2PLOCKKILL
Sets the RESERVED memory bank kill password permalock bit
None
Sets the permalock bit of the RESERVED memory bank kill password. Once the permalock bit has
been asserted, the state of the kill password lock bit may no longer be altered, whether a logic 0 or a
logic 1.
MaxReader CLI User Guide v1.05
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