Re: PDP-11/23 query

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1 total messages Started by herbert Mon, 13 Oct 1986 17:48

#342

Author: herbert
Date: Mon, 13 Oct 1986 17:48

24 lines
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>I know someone with the following system:
 
>PDP-11/23 CPU
>256K RAM board
>2 DLV-11J 4-port serial boards
>Paralel printer board
>RLV-12 disk controller with 4 RL02's
>5-inch backplane supporting 18-bit addressing.
 You can only get 22-bit (4MB) support if your CPU board is rev "B"
 or higher, according to the hardware expert in my group. If you have
 this, then you will need to either modify your backplane to carry
 the four address lines, or get a new one.
 
 The RLV-12 controller does support 22 bit addressing; there is a jumper
 (or switch, I forget) on the module to enable this. It is the RLV-11
 which doesn't have this feature.
 
 Since all the other devices that you mentioned are not DMA devices, you
 shouldn't have any other problems.
 
 I don't know anything about TSX, so I can't answer your software
 questions.
 
Kevin

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