EPC Gen-2 RFID Tag Baseband Processor

EPC Radio-Frequency Identity Protocols Generation-2 UHF RFID :
http://www.gs1.org/sites/default/files/docs/epc/Gen2_Protocol_Standard.pdf

GitHub repository :
https://github.com/Gurint/EPC-Gen2-RFID-Tag-Baseband-Processor

Introduction

A low-cost low-power baseband processor for EPC Gen-2 UHF RFID Tag

operated in the lowest frequency (see FM0 and Miller Encoder/Decoder)
clock gating
operand isolation
need a memory (in my case, I use a ROM)
Verilog language
synthesized by Synopsys Design Compiler
apr by Synopsys IC Compiler
implemented by TSMC 0.18 um CMOS standard process

Modules

NAME	DESCRIPTION
bb_proc	baseband processor, top module
cmd_buf	command buffer, serial to parallel
cmd_proc	command processor, processes received commands
crc16	CRC-16 encoder/decoder
crc5	CRC-5 encoder/decoder
crg	clock/reset generator, timing control
fm0_enc	FM0 Encoder, operates in the lowest freq.
frmgen	frame generator, generates preamble, backscattered data, end-of-signaling
fs_detector	frame-sync detector
mem_if	memory interface
miller_enc	Miller encoder, operates in the lowest freq.
prng	16-bit Pseudorandom number generator
rx	Receive
two_dff_sync	Synchronizer, synchronizes signals from clock domain A to B
tx	Transmit

Test Bench

bb_proc_tb : an example of the communication between a Reader and a single Tag

Scripts

bb_proc_syn : for synthesis
bb_proc_apr : for apr

ROM Code File

rom_code : 64x16, 64 words and 16 bits per word

Notes

This design is implemented by TSMC 0.18 um CMOS standard process. It's not able to manufacture EEPROM, so I use a ROM to be processor's memory. That makes I can't verify Write command. I am not able to provide ROM's verilog file because of confidentiality. It's generated by memory compiler of Artisan Components, Inc. Anyone wanting to use this baseband processor should make your own memory. For simply test, you can write a register file. For tapeout, I suggest you generating a EEPROM.

Author

Ian Chuang
[email protected]
https://github.com/Gurint

License

The EPC-Gen2-RFID-Tag-Baseband-Processor repository source code is licensed under the MIT license.
See LICENSE for MIT copyright terms.

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