THNCF008MAA Datasheet, PDF (13/52 Pages) Toshiba Semiconductor – CompactFlash Card

Preliminary version
THNCFxxxMAA Series
Access Specifications
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(8-bit)
Word access(16-bit)
Odd byte access(8-bit)
Note: x: L or H
-REG
x
L
L
L
L
-CE2
H
H
H
L
L
-CE1
H
L
L
L
H
A0 -OE
x
x
LL
HL
x
L
x
L
-WE
x
H
H
H
H
D8 to D15
High-Z
High-Z
High-Z
invalid
invalid
D0 to D7
High-Z
even byte
invalid
even byte
High-Z
Attribute Write Access Mode
Mode
-REG -CE2 -CE1 A0 -OE -WE D8 to D15
Standby mode
Byte access(8-bit)
Word access(16-bit)
Odd byte access(8-bit)
x
H
H
x
x
x Don’t care
L
H
L
L
H
L Don’t care
L
H
LHH
L Don’t care
L
L
L
x
H
L Don’t care
L
L
HxH
L Don’t care
Note: x: L or H
Note: write CIS-ROM region is invalid.
D0 to D7
Don’t care
even byte
Don’t care
even byte
Don’t care
Attribute Access Timing Example
A0 to A10
-REG
-CE2/-CE1
-OE
-WE
D0 to D15
Dout
read cycle
Din
write cycle
2001-09-05 13/52