Author Topic: Am I correct with the Bit/IC allocation a CPC664 (Geralds Ramtest)  (Read 1307 times)

0 Members and 1 Guest are viewing this topic.

Offline Audronic

  • 6128 Plus
  • ******
  • Posts: 1.452
  • Country: au
  • I know RST3 . I now know a little More.
  • Liked: 321
  • Likes Given: 737
HI All

Geralds (Dead) Ramtest
Am I correct with the Bit/IC allocation a CPC664
About to snip out some ram on 3 CPC664's


Ray
« Last Edit: 07:43, 31 January 19 by Audronic »
Procrastinators Unite,
If it Ain't Broke PLEASE Don't Fix it.
I keep telling you I am Not Pedantic.
As I Live " Down Under " I Take my Gravity Tablets and Wear my Magnetic Boots to Keep me from Falling off.

Offline gerald

  • Supporter
  • 6128 Plus
  • *
  • Posts: 1.557
  • Liked: 1111
  • Likes Given: 265
HI All

Geralds (Dead) Ramtest
Am I correct with the Bit/IC allocation a CPC664
About to snip out some ram on 3 CPC664's


Ray

Bits are displayed from top of the scree in D7 to D0 order, so that's right  ;)
From Service manual (except for pre-asic version):
D7 = IC124
D6 = IC123
D5 = IC122
D4 = IC121
D3 = IC117
D2 = IC118
D1 = IC119
D0 = IC120
So it looks right too.



Offline Audronic

  • 6128 Plus
  • ******
  • Posts: 1.452
  • Country: au
  • I know RST3 . I now know a little More.
  • Liked: 321
  • Likes Given: 737
@gerald


Thanks for the explanation.


Where are those side cutters and the soldering iron ?


Thanks.  Ray
Procrastinators Unite,
If it Ain't Broke PLEASE Don't Fix it.
I keep telling you I am Not Pedantic.
As I Live " Down Under " I Take my Gravity Tablets and Wear my Magnetic Boots to Keep me from Falling off.