Pio Timing; Pio Data Transfer To/From Device - Maxtor DIAMONDMAX 60 Manual

PIO Timing

TIMING PARAMETERS
t0 Cycle Time (min)
t1 Address valid to DIOR-/DIOW- setup (min)
t2 DIOR-/DIOW- 16-bit (min)
t2i DIOR-/DIOW- recovery time (min)
t3 DIOW- data setup (min)
t4 DIOW- data hold (min)
t5 DIOR- data setup (min)
t6 DIOW- data hold (min)
t6Z DIOR- data tristate (max)
t9 DIOR-/DIOW- to address valid hold (min)
tRd Read Data Valid to IORDY active (min)
tA IORDY Setup Time
tB IORDY Pulse Width (max)
MODE 0 MODE 1 MODE 2
600 ns 383 ns 240 ns
70 ns 50 ns
165 ns 125 ns 100 ns
60 ns 45 ns
30 ns 20 ns
50 ns 35 ns
5 ns 5 ns
30 ns 30 ns
20 ns 15 ns
0 0
35 ns 35 ns
1250 ns 1250 ns 1250 ns
Figure 5 - 2

PIO Data Transfer To/From Device

MODE 3 MODE 4
180 ns 120 ns
30 ns 30 ns 25 ns
80 ns 70 ns
70 ns 25 ns
30 ns 30 ns 20 ns
15 ns 10 ns 10 ns
20 ns 20 ns 20 ns
5 ns 5 ns 5 ns
30 ns 30 ns 30 ns
10 ns 10 ns 10 ns
0 0 0
35 ns 35 ns 35 ns
1250 ns 1250 ns
AT INTERFACE DESCRIPTION
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