SDCFH-1024-388 SanDisk, SDCFH-1024-388 Datasheet - Page 22

• Manufacturer Part Number: SDCFH-1024-388
• Description: COMPACT FLASH 1GB ULTRA II
• Manufacturer: SanDisk

Specifications of SDCFH-1024-388

• Memory Size: 1GB
• Memory Type: CompactFLASH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

02/07, Rev. 12.0
Interface Description
The SanDisk CompactFlash Memory Card signals are described in Table 3-4.
Table 3-4
A10-A0
(PC Card Memory Mode)
(PC Card I/O Mode)
A2-A0
(True IDE Mode)
A10-A3
(True IDE Mode)
BVD1
(PC Card Memory Mode)
-STSCHG
(PC Card I/O Mode )
-PDIAG
(True IDE Mode )
BVD2
(PC Card Memory Mode)
-SPKR
(PC Card I/O Mode )
-DASP
(True IDE Mode )
-CD1, -CD2
(PC Card Memory Mode)
(PC Card I/O Mode )
(True IDE Mode )
-CE1, -CE2
(PC Card Memory Mode)
(PC Card I/O Mode)
-CS0, -CS1
(True IDE Mode)
-CSEL
(PC Card Memory Mode)
(PC Card I/O Mode)
Signal Name
Signal Description
Dir.
I/O
I/O
O
I
I
I
I
3-4
15, 16, 17, 18, 19,
8, 10, 11, 12, 14,
18, 19, 20
26, 25
7, 32
Pin
20
46
45
39
SanDisk CompactFlash Card OEM Product Manual
These address lines, along with the -REG
signal, are used to select the following: I/O port
address registers within the card, memory-
mapped port address registers within the card,
a byte in the card's information structure and its
configuration control and status registers.
In True IDE Mode only A[2:0] is used to select
one of eight registers in the Task File.
In True IDE Mode these remaining address
lines should be grounded by the host.
This signal is asserted high as the BVD1 signal
since a battery is not used with this product.
The Status Changed signal is asserted low to
alert the host to changes in the RDY/-BSY and
Write Protect states, while the I/O interface is
configured. Its use is controlled by the Card
Config. and Status Register.
In the True IDE Mode, this input/output is the
Pass Diagnostic signal in the master/slave
handshake protocol.
This output line is always driven to a high state
in Memory Mode since a battery is not required
for this product.
This output line is always driven to a high state
in I/O Mode since this product does not support
the audio function.
In the True IDE Mode, this input/output is the
Disk Active/Slave Present signal in the master/
slave handshake protocol.
These Card Detect pins are connected to
ground on the card. They are used by the host
to determine if the card is fully inserted into its
socket.
The Card Enable input signals are used both to
select the card and to indicate to the card
whether a byte or a word operation is being
performed. -CE2 always accesses the odd
byte of the word. -CE1 accesses the even byte
or the Odd byte of the word depending on A0
and -CE2. A multiplexing scheme based on
A0, -CE1, -CE2 allows 8 bit hosts to access all
data on D0-D7.
In True IDE Mode, -CS0 is the chip select for
the Task File registers while -CS1 is used to
select the Alternate Status Register and the
Device Control Register.
This signal is not used for PC Card Memory
Mode or PC Card I/O Mode.
Description
© 2007 SanDisk Corporation