THNCF008MAA Datasheet, PDF (16/52 Pages) Toshiba Semiconductor – CompactFlash Card

Preliminary version
THNCFxxxMAA Series
True IDE Mode
The card can be configured in a True IDE 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 is allowed. If this card is configured during power on sequence,
data register is accessed in word (16-bit). The card permits 8-bit accessed if the user issues a Set Feature
Command to put the device in 8-bit mode.
True IDE Mode Read I/O Function
Mode
-CE2
Invalid mode
L
Standby mode
H
Data register access
H
Alternate status access
L
Other task file access
H
Note: x: L or H
True IDE Mode Write I/O Function
Mode
-CE2
Invalid mode
L
Standby mode
H
Data register access
H
Control register access
L
Other task file access
H
Note: x: L or H
-CE1
L
H
L
H
L
-CE1
L
H
L
H
L
A0 to A2
x
x
0
6H
1-7H
A0 to A2
x
x
0
6H
1-7H
-IORD
x
x
L
L
L
-IORD
x
x
H
H
H
-OWR
x
x
H
H
H
-OWR
x
x
L
L
L
D8 to D15
High-Z
High-Z
odd byte
High-Z
High-Z
D8 to D15
don’t care
don’t care
odd byte
don’t care
don’t care
D0 to D7
High-Z
High-Z
even byte
status out
data
D0 to D7
don’t care
don’t care
even byte
control in
data
True IDE Mode I/O Access Timing Example
A0 to A2
-CE
-IORD
-IOWR
-IOIS16
D0 to D15
Dout
read cycle
Din
write cycle
2001-09-05 16/52