Datasheet
113730 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 3.0 — 14 March 2007 19 of 33
NXP Semiconductors
SL2 ICS53/SL2 ICS54
I•CODE SLI-S/I•CODE SLI-S HC
PUBLIC
8.1.3.11 Inventory page read
Command Code = B0h
When receiving the Inventory Page Read request, the I•CODE SLI-S/I•CODE SLI-S HC
IC performs the same as in the anti-collision sequence, with the difference that instead of
the UID and the DSFID the requested memory content is re-transmitted from the
I•CODE
SLI-S/I•CODE SLI-S HC IC.
If an error is detected the I•CODE SLI-S/I•CODE SLI-S HC IC remains silent.
If the Option flag is set to 0 n pages of data including page protection status (password
protection condition) are re-transmitted. If the option flag is set to
1 n pages (4 blocks =
16
byte) of data including page protection status (password protection condition) and the
part of the UID which is not part of the mask are re-transmitted.
The request contains:
• Flags
• Inventory Page Read command code
• IC Manufacturer code
• AFI (if the AFI flag is set)
• Mask length
• Mask value (if mask length > 0)
• First page number to be read
• Number of pages to be read
• CRC 16
Table 40. Request format
SOF Flags Inventory
Read
IC Mfg
code
Optional
AFI
Mask
Length
Mask
Value
First Page
Number
Number of
Pages
CRC16 EOF
8 bits 8 bits 8 bits 8 bits 8 bits 0 to 64 bits 8 bits 8 bits 16 bits
8 bits
The Inventory_flag must be set to 1.
The meaning of flags 5 to 8 is according to table 5 in ISO/IEC 15693-3.
The number of pages in the request is one less than the number of pages that the
I•CODE SLI-S/I•CODE SLI-S HC IC returns in its response.
If the Option flag in the request is set to 0 the response contains:
Table 41. Response format
SOF Flags Data CRC16 EOF
8 bits Page status & data 16 bits
Repeated as needed
The I•CODE SLI-S/I•CODE SLI-S HC IC reads the requested block(s) including page
protection status and sends back their value in the response. The mechanism and timing
of the Inventory Page Read command performs the same as at the Inventory command
which is described in Clause 8 of ISO/IEC
15693-3.