AP-SDM008GAPANS-B Apacer, AP-SDM008GAPANS-B Datasheet - Page 21

• Manufacturer Part Number: AP-SDM008GAPANS-B
• Description: Memory Modules SDM II 8GB
• Manufacturer: Apacer

Specifications of AP-SDM008GAPANS-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: 8 GB
• Memory Type: SATA Disk Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.1.11 Read-Sector(s) (20h or 21h)
The Read-Sector(s) command allows the host to read from 1 to 256 sectors as specified in the Sector Count
register. If the Sector Count register is set to “0h”, 256 sectors of data will be made available. The transfer
begins at the sector specified in the Sector Number register. When this command is issued and after each
sector of data (except the last one) has been read by the host, the SAFD 253 sets BSY, puts the sector of
data in the buffer, sets DRQ, clears BSY, and generates an interrupt. The host then reads 512 bytes of data
from the buffer. At command completion, the Command Block registers contain the cylinder, head and sector
number of the last sector read. If an error occurs, the read 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 flawed data is pending in the sector buffer.
2.1.12 Read-Verify-Sector(s) (40h or 41h)
The Read-Verify-Sector(s) command operates similarly to the Read-Sector(s) command, with the exception
that it does not set the DRQ bit and does not transfer data to the host. Once the requested sectors have been
verified, the onboard controller clears the BSY bit and issues an interrupt.
2.1.13 Set-Features (EFh)
The Set-Features command is used by the host to establish or select certain features. The Features register
defines all features that are supported, as listed in Table 2-4.
© 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
SATA-Disk Module
LBA
LBA
6
6
6
X
20
5
1
5
1
5
Cylinder High (LBA 27-24)
Cylinder High (LBA 27-24)
Sector Number (LBA 7-0)
Sector Number (LBA 7-0)
Cylinder Low (LBA 15-8)
Cylinder Low (LBA 15-8)
Drive
Drive
Drive
Sector Count
Sector Count
20h or 21h
40h or 41h
4
4
4
Feature
EFh
X
X
X
X
X
X
Ⅱ Ⅱ Ⅱ Ⅱ
3
3
3
Head (LBA 27-24)
Head (LBA 27-24)
2
2
2
X
1
1
1
0
0
0
Rev. 1.0