17 Jun
1998
17 Jun
'98
2:16 p.m.
< Actually, you have one thing incorrect... IDE IS speed dependent. SCSI
<a COMPLETELY asyncronous bus, IDE is simply an extension of the ISA bus a
<does require a MINIMUM throughput of 1 megabit, which is not possible on
<4a without buffer space and a DMA controller.
Don't tell my z80 that... I debugged the interface using Basic right down
to sector reads and writes.
I read the spec as it must support 1mbyte/sec minimum to the host
not that it required 1mbyte/sec from the host. The IDE is locally
buffered just like SCSI so there is no need for speed save for the host
can make requests very fast (Pentiums). IDE is also an async bus.
Allison