CLRC663 Datasheet, PDF (30/132 Pages) NXP Semiconductors – Contactless reader IC

NXP Semiconductors
CLRC663
Contactless reader IC
μC
I2C
SAM
AV2.6
READER
IC
I2C
Reader
Fig 23. I2C interface enables convenient MIFARE SAM integration
aaa-002963
8.4.5.2 SAM connection
The CLRC663 provides an interface to connect a SAM dedicated to the CLRC663. Both
interface options of the CLRC663, I²C or I²CL can be used for this purpose. The interface
option of the SAM itself is configured by a host command sent from the host to the SAM.
The I²CL interface is intended to be used as connection between two IC’s over a short
distance. The protocol fulfills the I²C specification, but does support a single device
connected to the bus only.
8.4.6 Boundary scan interface
The CLRC663 provides a boundary scan interface according the IEEE 1149.1. This
interface allows to test interconnections without using physical test probes. This is done
by test cells, assigned to each pin, which override the functionality of this pin.
To be able to program the test cells, the following commands are supported:
Table 25. Boundary scan command
Value
(decimal)
Command
0
bypass
1
preload
1
sample
2
ID code (default)
3
USER code
4
Clamp
5
HIGH Z
7
extest
8
interface on/off
9
register access read
10
register access write
Parameter in
Parameter out
-
data (24)
-
-
-
-
-
data (24)
interface (1)
address (7)
address (7) - data (8)
-
-
data (24)
data (32)
data (32)
-
-
data (24)
-
data (8)
-
The Standard IEEE 1149.1 describes the four basic blocks necessary to use this interface:
Test Access Port (TAP), TAP controller, TAP instruction register, TAP data register;
CLRC663
Product data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.3 — 3 April 2012
171133
© NXP B.V. 2012. All rights reserved.
30 of 132