New Microchip PIC processor.

[Ludis Langens]

Bill the arcstarter <arcstarter at hotmail.com> wrote:
> Microchip has just put into production an intesting fully flash processor 
> which might be just about right for DIY_EFI applications:
> 
> http://www.microchip.com/10/Lit/PICmicro/16F87X/index.htm

These chips are proposed for the PIC based EPROM emulator over on gmecm.
 (BTW, drawing my proposed schematic for the emulator is bubbling up to
the top of my priority queue.)

> i/o out the wazoo

33 I/O lines maximum isn't a lot, especially with the way that Microchip
scatters the built-in peripherals onto these pins.

> 2) Allowed the processor to read/write the program space at runtime.  This 
> would be very useful for fuel maps and the like.  Prior to this processor - 
> that sort of thing would have required addition components.

AFAIK, every PIC has been able to have data tables in the built-in "ROM"
- using the "return and load W" opcode.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/