Toshiba SD-M1212 - DVD-ROM Drive - IDE, Specifications

Page: 20 / 35

14/28
SD-M1212 Rev.1.0
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
t4
t6
t7
t9
tA
t8
t0
t2
t1
t5
t3
tB
tRD
t2i
t6Z
*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 min(ns) max(ns) Min Time (ns) Max Time (ns)
t0 Cycle time 120
t1 Address valid to DIOR-/DIOW-setup 25
t2
DIOR-/DIOW- pulse wide 70
t2i
DIOR-/DIOW- recovery time 25
t3
DIOW- data setup 20
t4
DIOW- data hold 10
t5 DIOR- data setup
20
t6 DIOR- data hold
5
t6Z
DIOR- data tristate 30
t7
Addr valid to IOCS16- assertion 30
t8
Addr valid to IOCS16- negation
30
t9
DIOR-/DIOW- to address valid hold
10
tRD
Read Data Valid to IORDY active
0
tA
IORDY setup time
35
tB IORDY pulse wide 1250
Figure 8 Host Interface Timing