Program I/O Read Timing - Toshiba MK3006GAL Specification

10.4.2 Program I/O Read Timing

DA2, DA1, DA0
-CS0, -CS1
-DIOR
DD15∼DD0
-IOCS16
IORDY
Symbol
t Address Setup to -DIOR Low
ASE
t -DIOR Pulse Width
RE
t -DIOR data setup
RDSE
t Data Hold from -DIOR High
DOH
t Data Tri-state from -DIOR High
HDTS
t ADDR Hold from -DIOR High
AHE
t -DIOR Inactive
RDR
t Read Cycle Time
RDCY
t -IOCS16 valid from -CS
CICSV
t -IOCS16 valid from address
AICSV
t -IOCS16 inactive from address
AICSI
t Read Data Valid to IORDY
RD
t IORDY Setup time
A
t IORDY Pulse Width
B
( ) -IOCS16 is specified in ATA-2 specifications. For other modes, this signal is invalid. Drive releases
*
-IOCS16 within the time of t
resistance, output impedance and line capacitance.
t
ASE
t
CICSV
t
AICSV
Meaning
(min.)
(min.)
(min.)
(min.)
(max.)
(min.)
(min.)
(min.)
(max.)
(max.)
(max.)
(min.)
(max.)
(max.)
, but how long it takes to turn to inactive condition is defined by pull up
AICSI
Toshiba Corporation Digital Media Network Company
© 2005, Copyright TOSHIBA Corporation All Rights Reserved
t
RE
t
t t t
DAC RDSE DOH
t
HDTS
t
RD
t t
A
B
Transfer mode
0 1 2
70 50 30
165 125 100
50 35 20
5 5
30 30 30
20 15 10
- -
600 383 240
90 50 40
90 50 40
60 45 30
0 0
35 35 35
1250 1250 1250
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t t
AHE AICSI
t
RDR
RDCY
3 4
30 25
80 70
20 20
5 5 5
30 30
10 10
- 70 25
180 120
n/a* n/a*
n/a* n/a*
n/a* n/a*
0 0 0
35 35
1250 1250