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HB2881000A5 Datasheet, PDF (14/66 Pages) Hitachi Semiconductor – FLASH ATA Card 1 GByte | |||
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HB2881000A5
(2) Memory address map
Task File Register Read Access Mode (2)
Mode
-REG -CE2 -CE1 A0
Standby mode
Ã
H
H
Ã
Byte access (8-bit)
H
H
L
L
H
H
L
H
Word access (16-bit) H
L
L
Ã
Odd byte access (8-bit) H
L
H
Ã
Note: Ã: L or H
-OE -WE -IORD -IOWR D8 to D15 D0 to D7
Ã
Ã
Ã
Ã
High-Z High-Z
L
H
H
H
High-Z even byte
L
H
H
H
High-Z odd byte
L
H
H
H
odd byte even byte
L
H
H
H
odd byte High-Z
Task File Register Write Access Mode (2)
Mode
-REG -CE2 -CE1 A0
Standby mode
Ã
H
H
Ã
Byte access (8-bit)
H
H
L
L
H
H
L
H
Word access (16-bit) H
L
L
Ã
Odd byte access (8-bit) H
L
H
Ã
Note: Ã: L or H
-OE -WE -IORD -IOWR D8 to D15 D0 to D7
Ã
Ã
Ã
Ã
Donât care Donât care
H
L
H
H
Donât care even byte
H
L
H
H
Donât care odd byte
H
L
H
H
odd byte even byte
H
L
H
H
odd byte Donât care
Task File Register Access Timing Example (2)
A0 to A10
-REG
-CE2/-CE1
-OE
-WE
D0 to D15
Dout
read cycle
Din
write cycle
14
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