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CLRC66103HNR Datasheet(PDF) 27 Page - NXP Semiconductors |
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CLRC66103HNR Datasheet(HTML) 27 Page - NXP Semiconductors |
27 / 152 page NXP Semiconductors CLRC661 High performance NFC frontend CLRC661 plus µC Reader T=1 I2C I2C aaa-002963 SAM AV2.6 READER IC Figure 19. I2C interface enables convenient MIFARE SAM integration 8.4.5.2 SAM connection The CLRC661 provides an interface to connect a SAM dedicated to the CLRC661. Both interface options of the CLRC661, I2C, I2CL or SPI 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 ICs over a short distance. The protocol fulfills the I2C specification, but does support a single device connected to the bus only. The SPI block for SAM connection is identical with the SPI host interface block. The pins used for the SAM SPI are described in the following table: SPI functionality PIN MISO SDA2 SCL SCL2 MOSI IFSEL1 NSS IFSEL0 Table 20. SPI SAM connection 8.4.6 Boundary scan interface The CLRC661 provides a boundary scan interface according to the IEEE 1149.1. This interface allows testing 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: Value (decimal) Command Parameter in Parameter out 0 bypass - - 1 preload data (24) - 1 sample - data (24) 2 ID code (default) - data (32) 3 USER code - data (32) 4 Clamp - - 5 HIGH Z - - Table 21. Boundary scan command CLRC661 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 3.7 — 23 June 2021 COMPANY PUBLIC 456937 27 / 152 |
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