Currency

Shop categories

6502 plus 4


6502 plus 4

Our price:

198.44 PLN

Change currency:

USDGBPEUR

Weight: 0.2 kg

Login or register to buy

Buy more, pay less:

  • for 2 pieces and more - 3% (192.49 PLN)
  • for 5 pieces and more - 6% (186.53 PLN)
  • for 10 pieces and more - 9% (180.58 PLN)
  • for 50 pieces and more - 12% (174.63 PLN)
Like Ask Tell

 

 

  • CPU replacement for Commodore +4 /16/116 with additional 512 kB memory upgrade  compatible with Hannes 256kB RAM

 

 

 

 

 

 

Generall install notes:

  • remove CPU
  • insert 6502plus4 module ( WATCH FOR ORIENTATION!!)
  • Ready !
  • to get 256kB - Remove old dram, solder cas signal to CAS of removed drams 
    • example Commodore C16: point indicated by red arrow below

 

 

 

 

CAS signal is present:

  • pin 15 of 1bit memory chips ( 8 pieces at motherboard)
  • pin 16 of 4bit memory chips ( 2 pieces at motherboard)

 


Product gallery


 

Q: if it is compatible with Hannes 256KB, how can I access the 512KB? The Hannes expansion has only 2 Bits for bank selection. Is there any documentation available?

 

A: According to the VICE emulator, there is also 1 meg and 4 meg hannes compatible memory expansion, so 512k is just a subset of 1mb one

Bit 0/1/2 Select RAM-bank (0-7), standard is RAM-bank 7
Bit 3/4 - not used, can be read and written
Bit 5 - ignored, ram enable
Bit 6 1: Allowes TED-access to RAM (for text, graphic) to RAM-bank selected
with bits 0 and 1
0: TED-acces to RAM only in bank 3, bits 0 and 1 ignored
This function is available also in CSORY-expansion-mode
Bit 7 Switch-bound:
0: >$0fff
1: >$3fff