Earlier today I wrote about receiving my SX-Key.

Steve Baldwin <steveb@kcbbs.gen.nz> asks:

> Would you mind posting the software version and the date codes of the chips
> too.

I got version 0.2 of the software.  For those of you who are curious as
to the contents of the disk:

        SXKey.exe               the host program (obviously)

        sxkey.txt               description of the instruction set

        SX-Key Manual.PDF       manual in Acrobat format

        example.SRC             program to toggle rb.0 (in main) and
                                rb.1 (in timer interrupt)

        pwm.SRC                 program to generate eight PWMs using timer
                                interrupt

        sxdemo.SRC              fancy demo program demonstrates "virtual
                                peripherals" including timers, frequency
                                generator, UART, PWM, and ADC.  Accepts
                                commands from serial port to control
                                everything.

The 18-pin chips are marked:

              logo   SX18AC/DP
             SCENIX  9749

and the 28s read:

                 SX28AC/DP
                 9747

The latter have no logo.  There are no markings on the underside of either
size.

> I didn't get an eval board. What are they using for a clock source ?

It's a surface mount crystal; it appears to be marked 50.00, although the
lighting here (and my eyes) are not so good.  I didn't think one could get
fundamental-mode crystals at that high a frequency.

There are pads next to the crystal for two capacitors which are not loaded.

The SX-Key itself uses a surface mount SX20AC/SS, date code 9749, and a
50.00 MHz crystal.

Cheers,
Eric