Texas Instruments HFDEMOKITII Manuale Utente

Pagina di 45
September 2001
                S6350 Reader Reference Guide
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3.2.3  ISO/IEC FCD 15693 Part 3 Transmission Protocol
In addition to supporting the Tag-it
TM
 protocol outlined within the preceding section, the S6350
Mid-Range HF-I Reader complies with the standard RF interface and transmission protocol of
ISO/IEC IS 15693-2 & 3.  Please note that each of the ISO protocol command and response
packets outlined within the following sections are contained within the standard reader protocol
as outlined within Section 3.1.  It should also be noted that the details of the individual ISO
15693-3 commands are not provided within this document, but are covered within the ISO/IEC
IS 15693-3:2001(E) Anti-Collision and Transmission Protocol document.  The ISO 15693-3
commands that are specifically applicable to the S6350 Reader are defined within the following
table.
3.2.3.1  ISO/IEC 15693-3 Command Codes
Command Function
Command Code
Inventory  (Mandatory Command)
01
hex
Stay Quiet  (Mandatory Command)
02
hex
Read Single Block
20
hex
Write Single Block*
21
hex
Lock Block*
22
hex
Read Multiple Blocks
23
hex
Write AFI*
27
hex
Lock AFI*
28
hex
Write DSFID*
29
hex
Lock DSFID*
2A
hex
Get Multiple Block Security Status
2C
hex
Note:
Bit 7 of the ISO 15693 protocol Option_Flag must be set to 1 for
all Write and Lock commands to respond properly.
3.2.3.2  Request/Response Packet Format for ISO/IEC 15693-3
The data packet from the host to the reader is known as the request and the reply from the
reader to the host as the response. The host is always the primary station and initiates all
communication sequences.  These consist of request/response pairs where the host waits for a
response before continuing.  All ISO/IEC 15693-3 command request packets are contained
within the standard reader command request packet format.  In all cases, reader command 60
hex
is used to pass through ISO 15693 Part 3 commands to the reader.