Joerg & the gang...
I had occasion awhile back to look at some Sunplus ICs.
Some ASICs are 8031/8051 derivatives IIRC, but the databank stuff, etc. seems to be 6502 based! (This was a year ago so I might be fuzzy). If you can get a hex dump of some code I'd know right off the bat - each CPUs object code has a bit of 'rhythm' to it: 6800 looks different from 6502 which looks different than Z80....
I LOVE the old 6502 ;-) Fond memories.
Bill Wiese
San Jose, CA
Joerg Woerner wrote:
> The new HP 9G looks like a rebadged... what ?
> Dismantling the HP 9G reveals a CPU not expected: A
> Taiwanesian "Sunplus SPLB30A" (http://www.sunplus.com.tw)
> intended for Data Bank applications. You'll find more
> data here:
>http://www.sunplus.com.tw/products/pdf/lcd/datasheet/splb/lb30av03.pdf .
> It is a complete system with 2.5kByte RAM, 96kByte ROM
> and the display driver, key scan logic. In the typical
> Data Bank a huge RAM (128k Byte..) is added with a serial
> Bus. This is the way we are doing calculators since the
> Texas Instruments TI-68: Take a cheap microcontroller and
> add some software... Greetings from [=] key. Joerg