PCF7936AS View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
'PCF7936AS' PDF : 33 Pages View PDF
NXP Semiconductors
Security Transponder (HITAG2)
Product Specification
PCF7936AS
7.3 Command Set
Device operation is controlled by commands issued from
the basestation. Table 4 gives a comprehensive summary
of the applicable commands in alphabetic order. Command
operation and acceptance depend on the actual device
state in which the command is being issued as well as on
the device configuration (Password/Cipher Mode), see also
section 7.2. A command being issued in a different state
may cause an error condition.
Table 4. Command Set Summary
NAME
HALT
READ_PAGE
READ_PAGE_INV
START_AUTH
WRITE_PAGE
DESCRIPTION
Forces the device to enter the HALT state
Reads 32 bit from the designated memory page, if not restricted by the
corresponding memory protection flags or by specification
Reads 32 bit from the designated memory page, if not restricted by the
corresponding memory protection flags or by specification. The content of the page
is returned in inverse polarity.
Starts the device authentication sequence
Writes 32 bit to the designated memory page, if not restricted by the corresponding
memory protection flags or by specification
APPLICABLE
DEVICE STATE
AUTHORIZED
AUTHORIZED
AUTHORIZED
WAIT
AUTHORIZED
2010 May 04
13
CONFIDENTIAL
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