SMC04GBFK6E NUMONYX, SMC04GBFK6E Datasheet - Page 79

• Manufacturer Part Number: SMC04GBFK6E
• Description: MEMORY CARD 4GB COMPACT FLASH
• Manufacturer: NUMONYX

Specifications of SMC04GBFK6E

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

SMCxxxBF
10.27
10.28
Write Multiple without Erase command (CDh)
This command is similar to the Write Multiple command with the exception that an implied
erase before write operation is not performed. The sectors should be pre-erased with the
Erase Sector(s) command before this command is issued.
Multiple without Erase command byte sequence.
Table 81.
Write Sector(s) command (30h or 31h)
This command writes from 1 to 256 sectors as specified in the sector count register. A
sector count of zero requests 256 sectors. The transfer begins at the sector specified in the
sector number register. When this command is accepted, the card sets BSY, sets DRQ and
clears BSY, then waits for the host to fill the sector buffer with the data to be written. No
interrupt is generated to start the first host transfer operation. No data should be transferred
by the host until BSY has been cleared by the host.
For multiple sectors, after the first sector of data is in the buffer, BSY will be set and DRQ will
be cleared. After the next buffer is ready for data, BSY is cleared, DRQ is set and an
interrupt is generated. When the final sector of data is transferred, BSY is set and DRQ is
cleared. It will remain in this state until the command is completed at which time BSY is
cleared and an interrupt is generated. If an error occurs during a write of more than one
sector, writing terminates at the sector where the error occurred. The command block
registers contain the cylinder, head and sector number of the sector where the error
occurred. The host may then read the command block to determine what error has
occurred, and on which sector.
sequence.
Command (7)
Sect Num (3)
Cyl High (5)
Sect Cnt (2)
Cyl Low (4)
Feature (1)
C/D/H (6)
Bit
Write Multiple without Erase
X
7
Table 82
LBA
6
defines the Write Sector(s) command byte
5
1
Sector number
Cylinder High
Cylinder Low
Sector count
Driv
CDh
4
e
X
Table 81
CF-ATA command description
3
2
defines the Write
Head
1
0
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