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- Path: ecf2.puc.edu!rldickin
- From: ":=Rob=:" <rldickin@puc.edu>
- Newsgroups: comp.sys.amiga.hardware
- Subject: Technical DRAM Question.
- Date: Sun, 28 Jan 1996 17:58:38 -0800
- Organization: CRL Dialup Internet Access
- Message-ID: <Pine.BSD/.3.91.960128174644.5065A-100000@ecf2.puc.edu>
- NNTP-Posting-Host: ecf2.puc.edu
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-
- My A500s internal memory consists of 16 32k chips. Each chip has 9
- address lines and one data line. The data lines from each of the 16 chips
- all combine into the 16-bit data bus. The 9 address lines function as
- both the upper 9 bits and lower 9 bits of the 18-bit CHIP memory
- address. There are three other lines named CAS, RAS, and WE. What I
- need to know is what the function of each of these other lines are.
-
- Also, the Agnus has the lines CASU, CASL, RAS0, and RAS1. One of the CAS
- lines feed to the CAS on the memory and one of the RAS lines feed to the
- memory. What do these lines do?
-
- How does memory refreshing occur?
-
- Any info is much appreciated, :=Rob=:
-