6
SLOS743L – AUGUST 2011 – REVISED MARCH 2017
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Revision History
Copyright © 2011–2017, Texas Instruments Incorporated
Serial Interface Mode With Slave Select (SS)
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Added the NOTE that starts "An additional direct mode..." in
,
Direct Mode
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Added
,
TRF7970A Initialization
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Changed the application report that is referenced in
,
Special Direct Mode for Improved MIFARE™
Compatibility
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Changed POLLING to SENSF_REQ and updated description in the list item that starts "If the first command is a
SENSF_REQ..."
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Updated the description in the list item that starts "If the first command is ATR_REQ..."
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Corrected description of B1 Irq_col in
,
IRQ Status Register (0x0C) for NFC and Card Emulation
Operation
: changed from "(as defined in register 0x01)" to "(as defined in register 0x10)"
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Removed mention of collision avoidance commands from
,
Initiator
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Added and updated comments in
Address and Command Word Bit Distribution
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Removed command code 0x15, Close Slot Sequence, from
Address and Command Word Bit
Distribution
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Added the sentence that starts "This command should be sent after a Software Initialization command..." in
Idle (0x00)
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Changed the description in
,
Initial RF Collision Avoidance (0x04)
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Changed the description in
,
Response RF Collision Avoidance (0x05)
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Changed the description in
,
Response RF Collision Avoidance (0x06, n = 0)
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Added "This is used by the ISO/IEC 15693 protocol" to
,
Transmit Next Time Slot (0x14)
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Corrected description of B1 Irq_col in
,
IRQ Status Register (0x0C)
: changed from "(as defined in
register 0x01)" to "(as defined in register 0x10)"
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Changed the description of B5:B3 in
from "...Auxiliary RSSI represents the signal level at RX_IN2" to
"...Auxiliary RSSI represents the signal level at RX_IN1"
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Removed former Section 7.1,
TRF7970A Reader System Using Parallel Microcontroller Interface
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Changed
,
Application Schematic – SPI With SS Mode MCU Interface
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Updated the description in
Schematic
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Added
Getting Started and Next Steps
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Added
Device Nomenclature
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Added
Tools and Software
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Updated
Documentation Support
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