AP-SDM004GAPANS-B Apacer, AP-SDM004GAPANS-B Datasheet - Page 24

• Manufacturer Part Number: AP-SDM004GAPANS-B
• Description: Memory Modules SDM II 4GB
• Manufacturer: Apacer

Specifications of AP-SDM004GAPANS-B

• Product: 2.5 in Solid State Drive
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Memory Size: 4 GB
• Memory Type: SATA Disk Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.1.18 Write-DMA (CAh)
This Write-DMA command allows the host to write data using the DMA transfer protocol. This command
executes in a similar manner to Write-Sector(s) except for the following:
– The host initializes the DMA channel prior to issuing the command;
– Data transfers are qualified by DMARQ and are performed by the DMA channel;
– The ATA flash-disk controller issues only one interrupt per command to indicate that data transfer has
terminated and status is available.
2.1.19 Write-Multiple (C5h)
The Write-Multiple command operates in the same manner as the Write-Sector command, When it was issued,
the device will set the BSY bit within 400 nsec, and an interrupt is generated at the completion of a transferred
block of sectors. The DRQ bit is set at the beginning of a block transfer.
2.1.20 Write-Sector(s) (30h or 31h)
This Write-Sector(s) command writes from 1 to 256 sectors as specified in the Sector Count register. A sector
count of zero requests 256 sectors. When it is issued, the device will set the BSY bit within 400 nsec, and an
interrupt is generated at the completion of a transferred block of sectors. The DRQ bit is set at the beginning
of a block transfer.
© 2009 Apacer Technology Inc.
Sector Number (LBA Low)
Sector Number (LBA Low)
Sector Number (LBA Low)
Cylinder High (LBA High)
Cylinder High (LBA High)
Cylinder High (LBA High)
Cylinder Low (LBA Mid)
Cylinder Low (LBA Mid)
Cylinder Low (LBA Mid)
Sector Count
Sector Count
Sector Count
Command
Command
Command
Register
Features
Register
Features
Register
Features
Device
Device
Device
AP-SDMxxxxXPANS-B
7
1
7
1
7
1
SATA-Disk Module
LBA
LBA
LBA
6
6
6
23
5
1
5
1
5
1
Cylinder High (LBA 27-24)
Cylinder High (LBA 27-24)
Cylinder High (LBA 27-24)
Sector Number (LBA 7-0)
Sector Number (LBA 7-0)
Sector Number (LBA 7-0)
Cylinder Low (LBA 15-8)
Cylinder Low (LBA 15-8)
Cylinder Low (LBA 15-8)
Drive
Drive
Drive
Sector Count
Sector Count
Sector Count
30h or 31h
4
4
4
CAh
C5h
X
X
X
Ⅱ Ⅱ Ⅱ Ⅱ
3
3
3
Head (LBA 27-24)
Head (LBA 27-24)
Head (LBA 27-24)
2
2
2
1
1
1
0
0
0
Rev. 1.0