Texas Instruments TRF7970A Manual page 6

TRF7970A
SLOS743L – AUGUST 2011 – REVISED MARCH 2017
Section 6.10.5.1, Serial Interface Mode With Slave Select (SS)
• Added the NOTE that starts "An additional direct mode..." in
• Added Section 6.11, TRF7970A Initialization
• Changed the application report that is referenced in
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Compatibility
• Changed POLLING to SENSF_REQ and updated description in the list item that starts "If the first command is a
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SENSF_REQ..."
• Updated the description in the list item that starts "If the first command is ATR_REQ..."
• Corrected description of B1 Irq_col in
Operation: changed from "(as defined in register 0x01)" to "(as defined in register 0x10)"
• Removed mention of collision avoidance commands from
• Added and updated comments in
• Removed command code 0x15, Close Slot Sequence, from
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Distribution
• Added the sentence that starts "This command should be sent after a Software Initialization command..." in
Section 6.14.1.1, Idle (0x00)
• Changed the description in
• Changed the description in
• Changed the description in
• Added "This is used by the ISO/IEC 15693 protocol" to
• Corrected description of B1 Irq_col in
register 0x01)" to "(as defined in register 0x10)"
• Changed the description of B5:B3 in
"...Auxiliary RSSI represents the signal level at RX_IN1"
• Removed former Section 7.1, TRF7970A Reader System Using Parallel Microcontroller Interface
• Changed Figure 7-1, Application Schematic – SPI With SS Mode MCU Interface
• Updated the description in
• Added Section 8.1, Getting Started and Next Steps
• Added Section 8.2, Device Nomenclature
• Added Section 8.3, Tools and Software
• Updated Section 8.4, Documentation Support
6 Revision History
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Section
Table 6-18, IRQ Status Register (0x0C) for NFC and Card Emulation
Table 6-19, Address and Command Word Bit Distribution
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Section 6.14.1.3, Initial RF Collision Avoidance (0x04)
Section 6.14.1.4, Response RF Collision Avoidance (0x05)
Section 6.14.1.5, Response RF Collision Avoidance (0x06, n = 0)
Table 6-43, IRQ Status Register (0x0C): changed from "(as defined in
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Table 6-47 from "...Auxiliary RSSI represents the signal level at RX_IN2" to
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Section 7.1.2, Schematic
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Section 6.10.6, Direct Mode
6.12, Special Direct Mode for Improved MIFARE™
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Section 6.13.2, Initiator
Table 6-19, Address and Command Word Bit
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Section 6.14.1.11, Transmit Next Time Slot (0x14)
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Copyright © 2011–2017, Texas Instruments Incorporated
TRF7970A
www.ti.com
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