EMS 64MB #6
Description
There is a 186 chip (C&T F8680) apparently supporting 64MB EMS in some way.
What do you think of its architecture? Is it possible to implement a similar mechanism in an ISA card form (via FPGA/PLD or other means) for use in any computer, not only the few F8680 ones?
Also, what do you think the linked datasheets refer to as local system memory that is directly managed? They make distinction between:
- local system memory that is directly managed (4MB)
- total addressable memory (32MB in F8680 rev1.1 or 64MB in F8680A rev2.0) - I assume a non-standard EMS driver?
- PCMCIA memory
Similarly, Vadem VG230:
EMS 4.0 compatible memory subsystem, supports up to 64Mbytes.
memory manager which is programmed using a compatible superset of LIM 4.0 registers
expanded memory. As a compatible superset of LIM 4.0, its command set is easy to support