Getac Technology Corporation RX10RFID Manual De Usuario

SLOS743K – AUGUST 2011 – REVISED APRIL 2014

Step 1: Configure Pins I/O_0 to I/O_2 for SPI with SS

Step 2: Set Pin 12 of the TRF7970A (ASK/OOK pin) to 0 for ASK or 1 for OOK

Step 3: Program the TRF7970A registers

The following registers need to be explicitly set before going into the Direct Mode.

1. ISO Control register (0x01) to the appropriate standard

–

0x02 for ISO 15693 High Data Rate

–

0x08 for ISO14443A (106 kbps)

–

0x1A for FeliCa 212 kbps

–

0x1B for FeliCa 424 kbps

2. Modulator and SYS_CLK register (0x09) to the appropriate clock speed and modulation

–

0x21 for 6.78 MHz Clock and OOK (100%) modulation

–

0x20 for 6.78 MHz Clock and ASK 10% modulation

–

0x22 for 6.78 MHz Clock and ASK 7% modulation

–

0x23 for 6.78 MHz Clock and ASK 8.5% modulation

–

0x24 for 6.78 MHz Clock and ASK 13% modulation

–

0x25 for 6.78 MHz Clock and ASK 16% modulation
(See register 0x09 definition for all other possible values)

Example register setting for ISO14443A at 106 kbps:

•

ISO Control register (0x01) to 0x08

•

RX No Response Wait Time register (0x07) to 0x0E

•

RX Wait Time register (0x08) to 0x07

•

Modulator control register (0x09) to 0x21 (or any custom modulation)

•

RX Special Settings register (0x0A) to 0x20

Detailed Description

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