LRI64 datasheet(22/52 Pages) STMICROELECTRONICS

部件名	LRI64

功能描述	Memory tag IC at 13.56 MHz, with 64-bit unique ID and WORM user area, ISO 15693 and ISO 18000-3 Mode 1 compliant

PDF	52 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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22 / 52 page

Modes

LRI64

22/52

Modes

The term mode refers to the mechanism for specifying, in a request, the set of LRI64

devices that shall answer to the request.

13.1

Addressed mode

When the Address_flag is set to 1 (Addressed mode), the request contains the unique ID

(UID) of the addressed LRI64 device (such as an LRI64 device). Any LRI64 receiving a

request in which the Address_flag is set to 1, compares the received Unique ID to its own

UID. If it matches, it execute the request (if possible) and returns a response to the VCD, as

specified by the command description. If it does not match, the LRI64 device remains silent.

13.2

Non-addressed mode (general request)

When the Address_flag is set to 0 (Non-addressed mode), the request does not contain a

Unique ID field. Any LRI64 device receiving a request in which the Address_flag is set to 0,

executes the request and returns a response to the VCD as specified by the command

description.

Figure 19.

LRI64 state transition diagram

AI09723

Power Off

In field

Out of

field

Write, Read, Get_System_Info

in addressed mode

Stay quiet(UID)

Out of

field

Inventory (if UID written)

Write, Read, Get_System_Info

in addressed and

non-addressed modes

Ready

Quiet

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