SanDisk SDSDH-512 - Ultra II Flash Memory Card Manual descarregar pdf (Página 39)

SanDisk CompactFlash Card OEM Product Manual Interface Description

In addition, these registers provide a method for accessing status information about the card

that may be used to arbitrate between multiple interrupt sources on the same interrupt level or

to replace status information that appears on dedicated pins in memory cards that have

alternate use in I/O cards.

Table 3-17 Registers and Memory Space Decoding

-CE2

-CE1

-REG

-OE

-WE

A10

A8-

Selected Space

Standby

X 0 0 0 1 X 1 XX X X X 0 Configuration Registers

Read

1 0 1 0 1 X X XX X X X X Common Memory Read

(8-bit D7-D0)

0 1 1 0 1 X X XX X X X X Common Memory Read

(8-bit D15-D8)

0 0 1 0 1 X X XX X X X 0 Common Memory Read

(16-bit D15-D0)

X 0 0 1 0 X 1 XX X X X 0 Configuration Registers

Write

1 0 1 1 0 X X XX X X X X Common Memory Write (8-

bit D7-D0)

0 1 1 1 0 X X XX X X X X Common Memory Write (8-

bit D15-D8)

0 0 1 1 0 X X XX X X X 0 Common Memory Write

(16-bit D15-D0)

X 0 0 0 1 0 0 XX X X X 0 Card Info Structure Read

1 0 0 1 0 0 0 XX X X X 0 Invalid Access (CIS Write)

1 0 0 0 1 X X XX X X X 1 Invalid Access (Odd

Attribute Read)

1 0 0 1 0 X X XX X X X 1 Invalid Access (Odd

Attribute Write)

0 1 0 0 1 X X XX X X X X Invalid Access (Odd

Attribute Read)

0 1 0 1 0 X X XX X X X X Invalid Access (Odd

Attribute Write)

NOTE: The location of the card configuration registers should always be

read from the CIS since these locations may vary in future products.

No writes should be performed to the card attribute memory except

to the card configuration register addresses. All other attribute

memory locations are reserved.

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 107 108

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