THNCF064MMA Datasheet, PDF (10/47 Pages) Toshiba Semiconductor – The THNCFxxxxMA series CompactFlash card is a flash technology based with ATA interface flash memory card

Access Specifications
Preliminary
THNCFxxxxMA Series
1. Attribute access specifications
When CIS-ROM region or Configuration register region is accessed, read and write operations are executed
under the condition of –REG=”L” as follows. That region can be accessed by Byte/World/Old-byte modes, which
are defined by PC card standard specifications.
• Attribute Read Access Mode
Mode
Standby mode
Byte access (8bit)
Word access (16bit)
Odd byte access (8bit)
Note: X Ë  L or H
−REG
−CE2
−CE1
A0
−OE
−WE D8 to D15 D0 to D7
X
H
H
X
Xç
Xç
High-Z
High-Zç
L
H
L
L
Lç
Hç
High-Zç even byte
L
H
L
H
Lç
Hç
High-Z
Invalidç
L
L
L
X
Lç
Hç
invalid even byteç
L
L
H
X
Lç
Hç
invalidç High-Zç
• Attribute Write Access Mode
Mode
−REG
−CE2
−CE1
A0
−OE
−WE D8 to D15 D0 to D7
Standby mode
X
H
H
X
Xç
Xç Don’t care Don’t careç
Byte access (8bit)
L
H
L
L
Hç
Lç Don’t careç even byte
L
H
L
H
Hç
Lç Don’t care Don’t careç
Word access (16bit)
L
L
L
X
Hç
Lç Don’t care even byteç
Odd byte access (8bit)
L
L
H
X
Hç
Lç Don’t careç Don’t careç
Note: X Ë  L or H
Write CIS-ROM region is invalid.
• Attribute Write Timing Example
A0~A10
−REG
−CE2/−CE1
−OE
−WE
D0~D15
Dout
Din
Read cycle
Write cycle
2002-10-20 10/47