SDCFCR-004G-388 SanDisk, SDCFCR-004G-388 Datasheet - Page 52

• Manufacturer Part Number: SDCFCR-004G-388
• Description: COMPACT FLASH IND 4GB
• Manufacturer: SanDisk

Specifications of SDCFCR-004G-388

• Memory Size: 4GB
• Memory Type: CompactFLASH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SanDisk Industrial Grade CompactFlash 5000
5.
This section defines the software requirements and the format of commands
the host sends to CompactFlash Memory cards. Commands are issued to the
card by loading the required registers in the command block with the supplied
parameters, and then writing the command code to the Command Register.
The manner in which a command is accepted varies. There are three classes
(see Table 31: Primary and Secondary I/O Decoding) of command acceptance,
all dependent upon the host only issuing commands when the card is not
busy. (The BUSY bit in the status and alternate status registers is 0.)
Upon receipt of a Class 1 command, the card sets the BUSY bit within 400
nsec.
Upon receipt of a Class 2 command, the card sets the BUSY bit within 400
nsec, sets up the sector buffer for a write operation, sets DRQ within 700
µsec, and clears the BUSY bit within 400 nsec of setting DRQ.
Upon receipt of a Class 3 command, the card sets the BUSY bit within 400
nsec, sets up the sector buffer for a write operation, sets DRQ within 20 msec
(assuming no re-assignments), and clears the BUSY bit within 400 nsec of
setting DRQ.
5.1
Table36 summarizes the ATA command set with the paragraphs that follow
describing the individual commands and the task file for each.
© 2007 SanDisk® Corporation
Class
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
ATA Command Description
ATA Command Set
Check Power Mode
Execute Drive Diagnostic
Erase Sector(s) a
Format Track
Identify Device
Idle
Idle Immediate
Initialize Drive Parameters
Read Buffer
Read DMA
Read Multiple
Read Long Sector
Read Sector(s)
Read Verify Sector(s)
Recalibrate
Request Sense b
Seek
Set Features
Set Multiple Mode
Set Sleep Mode
Command
Table36: Primary and Secondary I/O Decoding
E5h or 98h
90h
C0h
50h
ECh
E3h or 97h
E1h or 95h
91h
E4h
C8 or C9
C4h
22h or 23h
20h or 21h
40h or 41h
1Xh
03h
7Xh
EFh
C6h
E6h or 99h
45
Code
FR
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Y
-
-
Y
Y
-
-
Y
-
SC
-
-
-
Y
Y
Y
-
Y
Y
-
-
-
Y
-
-
-
Y
-
-
-
-
-
-
Y
Y
Y
-
-
Y
-
-
-
SN
Y
Y
-
-
Y
Y
-
-
-
-
-
Y
Y
Y
-
-
Y
-
-
-
CY
Y
Y
D
D
Y
Y
D
D
D
Y
D
Y
Y
Y
Y
Y
D
D
Y
D
D
D
DH
Product Manual
-
-
Y
Y
-
-
-
-
-
Y
Y
Y
Y
Y
-
-
Y
-
-
-
LBA
July 2007