Potential Uses of Atmel FPSLIC Devices?

Here are some applications:

************************************************* Octal Fixed 9600 BAUD UART for external MCU. Common BAUD RATE generator

FPGA implements a 2 bit shift register for each tranmitter FPGA implements a majority voting filter and a startbit detector on each receivers FPGA synchronizes the receiver data with the transmitter data. Octal Software UART using a single interrupt handling all 8 transmitters and all 8 receivers handling H/W or S/W flow control Maintaining error counters

4 kB SRAM for FIFO buffers (256 level FIFO in both directions)

Thís should fit into the AT40K05.

**************************************************** Low speed HDLC controller (16 kbps) on T1/E1 line.

FPGA implements a synch serial controller with timeslot assignment. AVR handles the bit stuffing, calulcates CRC etc.

****************************************************** Advanced Timers Multiple capture channels. You have up to 16 kB x 8 SRAM for capture data. You can run the AX series in 40 Mhz. This means that you can store 8 x 40 = 320 bits of capture info per microseconds. If you capture 96 bits with a 64 bit timestamp you need 160 bits or 20 bytes giving you 500 ns resolution. you can store a maximum of 16384 / 20 = 819 events.

The SRAM can store sinus waveforms, for easy waveform generation.

***************************************************** If you need a fieldbus, here is the part. Many companies have their proprietary serial bus, which is often a piece of cake to implement on the FPSLIC. **************************************************** Graphics LCD controller. 64 * 128 = 1024 bytes. Fits easily into the FPSLIC and you get high speed access to the LCD buffer. **************************************************** CMOS camera framegrabber. Implement the CCITT interface in the FPGA Add a 32 x 15 FIFO in FreeRAM, and store in a shared memory outside the FPSLIC.

---------------------- Generally things which needs slow processing and fast synchronisation are excellent applications for the FPSLIC:

Feel free to contact me directly.

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Best Regards,
Ulf Samuelsson

Implementing filters is another possibility. You have lots of SRAM in an otherwise small FPGA:

I think it should be possible with a 100 ns 16 x 16 -> 32 multiply + 32 bit accumulate in 4 clocks on a 5/10 kgate FPSLIC, with both sample and coefficient in the n x 8 SRAM.

The AVR can acquire the samples from an external ADC and then start FIR/IIR filtering.

--
Best Regards,
Ulf Samuelsson

Ulf,

I'm having trouble replying to you directly. Is your mail address correct.

snipped-for-privacy@a-t-m-e-l.com

Or am I being stupid!!