MRV11-B UV PROM-RAM Memory Module: Difference between revisions
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==External links== | ==External links== | ||
* [http://www.bitsavers.org/pdf/dec/qbus/ | * [http://www.bitsavers.org/pdf/dec/qbus/EB-15836-18_Digital_Microcomputer_Processor_Handbook_1979_80.pdf microcomputer processor handbook] - the MRV11-B is covered in Chapter 12, pp. 396-411 (pp. 406-421 of the PDF) | ||
* [http://bitsavers.org/pdf/dec/qbus/MP00706-ET-LSI-11_Dec81.pdf ET-LSI-11 Field Maintenance Print Set] (MP00706) - the MRV11-B is covered on pp. 182-186 of the PDF | * [http://bitsavers.org/pdf/dec/qbus/MP00706-ET-LSI-11_Dec81.pdf ET-LSI-11 Field Maintenance Print Set] (MP00706) - the MRV11-B is covered on pp. 182-186 of the PDF | ||
[[Category: QBUS ROMs]] | [[Category: QBUS ROMs]] | ||
Latest revision as of 17:32, 9 October 2026
The MRV11-B UV PROM-RAM Memory Module was a QBUS ROM card. It held up to eight 8-bit x 1024 EPROM chips; it thus held up to 8KB when fully populated. It also contained 512 bytes of static RAM. The entire ROM contents were directly visible on the QBUS, not through a window, unlike later, larger UNIBUS ROM cards. The MRV11-B was a dual-height card, the M8021.
See also
- MRV11-A Read-Only Memory Module
- MRV11-C Read-Only Memory Module
- MRV11-D Universal Programmable Read-Only Memory
External links
- microcomputer processor handbook - the MRV11-B is covered in Chapter 12, pp. 396-411 (pp. 406-421 of the PDF)
- ET-LSI-11 Field Maintenance Print Set (MP00706) - the MRV11-B is covered on pp. 182-186 of the PDF
