HB289048C4 View Datasheet(PDF) - Hitachi -> Renesas Electronics
Part Name
Description
Manufacturer
HB289048C4 Datasheet PDF : 66 Pages
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HB289048C4/289032C4/289016C4/289008C4
Host 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/Word/Odd-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: ×: L or H
-REG -CE2 -CE1 A0
×
H
H
×
L
H
L
L
L
H
L
H
L
L
L
×
L
L
H
×
-OE -WE D8 to D15 D0 to D7
×
×
High-Z
High-Z
L
H
High-Z
even byte
L
H
High-Z
invalid
L
H
invalid
even byte
L
H
invalid
High-Z
Attribute Write Access Mode
Mode
Standby mode
Byte access (8-bit)
Word access (16-bit)
Odd byte access (8-bit)
Note: ×: L or H
-REG -CE2 -CE1 A0
×
H
H
×
L
H
L
L
L
H
L
H
L
L
L
×
L
L
H
×
-OE -WE D8 to D15 D0 to D7
×
×
Don’t care Don’t care
H
L
Don’t care even byte
H
L
Don’t care Don’t care
H
L
Don’t care even byte
H
L
Don’t care Don’t care
Attribute Access Timing Example
A0 to A10
-REG
-CE2/-CE1
-OE
-WE
D0 to D15
Dout
read cycle
Din
write cycle
12
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