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AP-SDMxxxxXPANS-HTX

4

© 2011 Apacer Technology Inc.

Rev. 1.2

1.3

ATA Mode Support

The SDM provides ATA mode support as follows:

Up to PIO mode-4

Up to Multiword DMA mode-2

Up to UDMA mode-5

1.4

Capacity Specification

Capacity specification of the SDM product family is available as shown in Table 1-1. It lists the specific

capacity, the default numbers of logical cylinders and heads, and the number of logical sectors per track for

each product line.

Table 1-1: Capacity specifications

Capacity

Total Bytes

Cylinders

Heads

Sectors

Max LBA

512 MB

487,710,720

945

16

63

952,560

1 GB

992,968,704

1,924

16

63

1,939,392

2 GB

2,002,452,480

3,880

16

63

3,911,040

4 GB

4,021,936,128

7,793

16

63

7,855,344

1.5

Performance

Performance of the SDM is shown in Table 1-2

Table 1-2: Performance

Capacity

Performance

512 MB

1 GB

2 GB

4 GB

Sustained read (MB/s)

22

27

27

27

Sustained write (MB/s)

8

12

22

23

Note: Performances vary from flash configurations.