Date   : Mon, 24 Jan 2005 18:12:39 +0000
From   : Mike Tomlinson <mike@...>
Subject: Re: Need Help Identifying Parts Of My BBC Catalogue (LONG)

In article <02af01c50221$c24ab760$36631552@...>, Charles
Blackburn <charlesb@...> writes

>Other Chips
>These are various chips I have too, I'm not sure what some of these are,
>mayb you can tell me:
>Hitachi 8313 - HN613128PB05 (c) Acorn

Basic II ROM for BBC B

>Hitachi 8322 - HN613128PB04 (c) Acorn
>Hitachi 8317 - HM613128PB04 (c) Acorn

OS1.20 ROMs for BBC B

>Hitachi 8627 - HM6264LP-15 - UO422880 (2 off)

8k static RAM, could be used as sideways RAM.  Can plug straight into a
ROM socket with one pin bent up and connected to the R/-W line.

>SAA 5050

Teletext chip.  Someone will want this as it's R@...!

>Ferranti ULA 5C094E-8 - 8301

older type video ULA (needs a heatsink)

>TI TMS5220NL - DEP 8319

Could be part of the Speech upgrade.

>6502 CPU (obvious :D) - 2 off
>8616 - EF6850P

6850 serial controller

>F6850 - 8307 - Singapore

and again

>F68B54P - 8313 - Phillipines

68B54 ACIA chip for Econet

>Motorola MC6850P - M6L8135

another 6850

>Various TI TMS4164-15NL, hitachi HM 4864P-2 (I am assuming these are
>SRAM chips)

DRAMs I think, especially if they're 16 pin.  Not for the Beeb - maybe
these came off your Torch card (see below)?

>Hitachi 3D1 - HD46505SP - HD6845SP

6845 CRT controller.  (Video chip.)

>R6522POI (6522-31)

6522 for system or user VIAs.

>8325 - SY6522 (same as above I assume just a diff make)
>Numerous Hitachi HM6116P-3's

BBC B RAM chips.

>I would love to get the Z80 co processor working and I am assuming it's
>a torch version as per the eproms, but I have no other software for it.

You don't need it.  If it's a Torch, plug the card into the Tube socket
on the BBC B. (If you don't have a 40 pin cable, use an IDE cable from a
PC).  You'll need a BBC with 8271 DFS. 

Plug the MCP 0.41 ROM into a spare ROM socket in the BBC.  If the CCCP
ROM is missing from the Torch card, plug it in (you listed it above.)

Turn the machine on.  If it boots into BASIC, type *MCP to start the
Torch.  Without a disk drive connected, there'll be a delay, then you
should see

0A> 

Type HELP to get started.

If the Z80 card is faulty, you'll see a repeating "No Z80!" message.

-- 
.sigmonster on vacation