SMC256BFY6E NUMONYX [Numonyx B.V], SMC256BFY6E Datasheet - Page 40

• Manufacturer Part Number: SMC256BFY6E
• Manufacturer: NUMONYX [Numonyx B.V]

Card Configuration
6.7
6.8
Table 35.
40/91
Invalid Mode
Standby Mode
Task File Write
Function Code
Common Memory Transfer Function
The Common Memory transfer to or from the Card permits both 8 or 16 bit access to all of
the Common Memory addresses. (see
Table 34.
True IDE Mode I/O Function
The Card can be configured in a True IDE Mode of operation. It is configured in this mode
only when the –OE signal is grounded by the host during the power off to power on cycle. In
this True IDE Mode the PCMCIA protocol and configuration are disabled and only I/O
operations to the Task File and Data Register are allowed. No Memory or Attribute Registers
are accessible to the host. The Set Feature Command can be used to put the device in 8 bit
Mode (see
Removing and reinserting the Card while the host computer’s power is on will reconfigure
the Card to PC Card ATA mode.
True IDE Mode I/O Function
Standby Mode
Byte Read Access
(8 bits)
Byte Write Access
(8 bits)
Word Read Access
(16 bits)
Word Write Access
(16 bits)
Odd Byte Read Only
(8 bits)
Odd Byte Write Only
(8 bits)
Function Code
–
CS1
X
X
H
H
L
L
L
Table
Common Memory Function
–
35).
CS0
X
X
H
L
L
L
L
X
H
H
H
H
H
H
H
H
–REG –CE2
A2 to
1h-7h
A0
X
X
X
X
X
X
H
H
H
H
H
L
L
L
L
-DMACK
H
L
L
L
L
L
L
H
H
H
H
X
–CE1 A0
L
L
L
L
Table
X
L
H
L
H
X
X
X
X
–
IORD
34).
H
X
X
X
X
L
L
X
L
L
H
H
L
H
L
H
–OE
–
IOWR
X
X
X
X
L
L
L
X
H
H
L
L
H
L
H
L
–WE
Undefined Out
Undefined Out
Undefined In
Undefined In
Don’t Care
D15 to D8
Undefined
High Z
High Z
High Z
Don’t Care
Don’t Care
Odd Byte
Odd Byte
Odd Byte
Odd Byte
High Z
In/Out
D15 to D8
Undefined Out
Undefined Out
High Z
Even Byte
Odd Byte
Even Byte
Odd Byte
Even Byte
Even Byte
High Z
Don’t Care
Undefined In
Undefined In
Undefined
D7 to D0
SMCxxxBF
D7 to D0
Data In
High Z
In/Out