> Another problem is the 72 pin SIMM. It has a 32 bit wide bus. Nice if you > have a 486. But the 65xx is 8 bits wide. Is it possible to select just 8 > bits? I would think so. The actual chips are generally in a matrix which is decoded with the /RAS, /CAS lines, with individual 8 bit slices of the 32 bit word having their own /CAS lines. from the TM497MBK36A, TM497MBK36A 4194304 by 36-bit data sheet: DQ0-DQ7, Q8 /RAS0 /CAS0 DQ9-DQ16, Q17 /RAS0 /CAS1 DQ18-DQ25, Q26 /RAS2 /CAS2 DQ27-DQ34, Q35 /RAS2 /CAS3 (there are only two /RAS lines) bogax - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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