Medalist 1640 and 2140 Product Manual, January 1996
The drive operates at multiword DMA mode 2 timing specifications, as
shown below.
Figure 10. Programmed I/O timing with IORDY
TE
DIOR-- data access
TI
DMACK-- to DIOR-- or DIOW-- setup
TJ
DIOR-- or DIOW-- to DMACK-- hold
TK
DIOR-- negated pulse width
R
TK
DIOW-- negated pulse width
W
TL
DIOR-- to DMARQ delay
R
TL
DIOW-- to DMARQ delay
W
37
----
70 nsec
----
----
5 nsec
----
20 nsec
----
10 nsec
----
0 nsec
----
5 nsec
----
25 nsec
----
25 nsec
----
----
----
30 nsec