HB288064C6 HITACHI [Hitachi Semiconductor], HB288064C6 Datasheet - Page 15
HB288064C6
Manufacturer Part Number
HB288064C6
Description
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet
1.HB288064C6.pdf
(67 pages)
- Current page: 15 of 67
- Download datasheet (170Kb)
3. True IDE Mode
The card can be configured in a True IDE mode of operation. This card is configured in this mode only when the -OE
input signal is asserted GND by the host. In this True IDE mode Attribute Registers are not accessible from the host.
Only I/O operation to the task file and data register are allowed. If this card is configured during power on
sequence, data register are accessed in word (16-bit).
Command to put the device in 8-bit mode.
True IDE Mode Read I/O Function
Mode
Invalid mode
Standby mode
Data register access
Alternate status access
Other task file access
Note:
True IDE Mode Write I/O Function
Mode
Invalid mode
Standby mode
Data register access
Control register access
Other task file access
Note:
True IDE Mode I/O Access Timing Example
D0 to D15
A0 to A2
-IOIS16
: L or H
: L or H
-IOWR
-IORD
-CE
read cycle
-CE2
L
H
H
L
H
-CE2
L
H
H
L
H
-CE1
L
H
L
H
L
-CE1
L
H
L
H
L
Dout
A0 to A2 -IORD
0
6H
1-7H
A0 to A2 -IORD
0
6H
1-7H
HB288256/192/160/128/096/064/032C6
The card permits 8-bit accesses if the user issues a Set Feature
L
L
L
H
H
H
-IOWR
H
H
H
-IOWR
L
L
L
write cycle
D8 to D15 D0 to D7
High-Z
High-Z
odd byte
High-Z
High-Z
D8 to D15 D0 to D7
don’t care
don’t care
odd byte
don’t care
don’t care
Din
High-Z
High-Z
even byte
status out
data
don’t care
don’t care
even byte
control in
data
15
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