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Timing Of Host Interface (Pio) - Toshiba SD-M1212 - DVD-ROM Drive - IDE Specifications

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6.2.2. Timing of Host Interface (PIO)

Figure 8 shows the Host Interface Timings.
Address valid*1
DIOR-/DIOW-
Write data valid*2
Read data valid*2
IOCS16-
IORDY
*1:Device Address consists of signals CS0-, CS1-, and DA2-0
*2:Data consists of DD0-15 (16-bit) or DD0-7 (8-bit)
PIO timing parameters
t0
Cycle time
t1
Address valid to DIOR-/DIOW-setup
DIOR-/DIOW- pulse wide
t2
DIOR-/DIOW- recovery time
t2i
DIOW- data setup
t3
DIOW- data hold
t4
t5
DIOR- data setup
t6
DIOR- data hold
DIOR- data tristate
t6Z
Addr valid to IOCS16- assertion
t7
Addr valid to IOCS16- negation
t8
DIOR-/DIOW- to address valid hold
t9
Read Data Valid to IORDY active
tRD
tA
IORDY setup time
tB
IORDY pulse wide
t1
t7
tA
min(ns) max(ns)
Figure 8 Host Interface Timing
t0
t2
t3
t5
tB
tRD
Min Time (ns)
120
25
70
25
20
10
20
5
10
0
14/28
t9
t2i
t8
t4
t6Z
t6
Max Time (ns)
30
30
30
35
1250
SD-M1212 Rev.1.0

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