Maxtor 6800 manual PIO Timing, Timing Parameters Mode

AT INTERFACE DESCRIPTION

PIO Timing

TIMING PARAMETERS

MODE 0

MODE 1

MODE 2

MODE 3

MODE 4

t0

Cycle Time (min)

600 ns

383 ns

240 ns

180 ns

120 ns

t1

Address valid to DIOR-/DIOW- setup (min)

70 ns

50 ns

30 ns

30 ns

25 ns

t2

DIOR-/DIOW- 16-bit (min)

165 ns

125 ns

100 ns

80 ns

70 ns

t2i

DIOR-/DIOW- recovery time (min)

70 ns

25 ns

t3

DIOW- data setup (min)

60 ns

45 ns

30 ns

30 ns

20 ns

t4

DIOW- data hold (min)

30 ns

20 ns

15 ns

10 ns

10 ns

t5

DIOR- data setup (min)

50 ns

35 ns

20 ns

20 ns

20 ns

t6

DIOW- data hold (min)

5 ns

5 ns

5 ns

5 ns

5 ns

t6Z

DIOR- data tristate (max)

30 ns

30 ns

30 ns

30 ns

30 ns

t9

DIOR-/DIOW- to address valid hold (min)

20 ns

15 ns

10 ns

10 ns

10 ns

tRd

Read Data Valid to IORDY active (min)

0

0

0

0

0

tA

IORDY Setup Time

35 ns

35 ns

35 ns

35 ns

35 ns

tB

IORDY Pulse Width (max)

1250 ns

1250 ns

1250 ns

1250 ns

1250 ns

Figure 5 - 2

PIO Data Transfer To/From Device

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