參數(shù)資料
型號: HB288256C6
廠商: Hitachi,Ltd.
英文描述: ; Leaded Process Compatible:Yes
中文描述: CF卡⑩
文件頁數(shù): 12/66頁
文件大小: 169K
代理商: HB288256C6
HB2881000/800/640/448/320/256/192/160/128/096/064/032A6
12
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
-REG
-CE2
-CE1
A0
-OE
-WE
D8 to D15
D0 to D7
Standby mode
×
H
H
×
×
×
High-Z
High-Z
Byte access (8-bit)
L
H
L
L
L
H
High-Z
even byte
L
H
L
H
L
H
High-Z
invalid
Word access (16-bit)
L
L
L
×
×
L
H
invalid
even byte
Odd byte access (8-bit)
Note:
×
: L or H
L
L
H
L
H
invalid
High-Z
Attribute Write Access Mode
Mode
-REG
-CE2
-CE1
A0
-OE
-WE
D8 to D15
D0 to D7
Standby mode
×
H
H
×
×
×
Don’t care
Don’t care
Byte access (8-bit)
L
H
L
L
H
L
Don’t care
even byte
L
H
L
H
H
L
Don’t care
Don’t care
Word access (16-bit)
L
L
L
×
×
H
L
Don’t care
even byte
Odd byte access (8-bit)
Note:
×
: L or H
L
L
H
H
L
Don’t care
Don’t care
Attribute Access Timing Example
Dout
A0 to A10
-REG
-CE2/-CE1
-OE
-WE
D0 to D15
read cycle
write cycle
Din
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