SST58SD024 datasheet(23/40 Pages) SST

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Data Sheet

ATA-Disk Chip

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S71167-05-000

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3.2.1.4.1 General Configuration

This field informs the host that this is a non-magnetic, hard sectored, removable storage device with a

transfer rate greater than 10 MByte/sec and is not MFM encoded.

3.2.1.4.2 Default Number of Cylinders

This field contains the number of translated cylinders in the default translation mode. This value will be

the same as the number of cylinders.

3.2.1.4.3 Default Number of Heads

This field contains the number of translated heads in the default translation mode.

3.2.1.4.4 Default Number of Sectors per Track

This field contains the number of sectors per track in the default translation mode.

3.2.1.4.5 Number of Sectors

This field contains the number of sectors per ADC. This double word value is also the first invalid

address in LBA translation mode.

3.2.1.4.6 Memory Serial Number

The contents of this field are right justified and padded with spaces (20H).

3.2.1.4.7 Buffer Type

This field defines the buffer capability:

0002H: a dual ported multi-sector buffer capable of simultaneous data transfers to or from the host and the ADC.

3.2.1.4.8 Buffer Size

This field defines the buffer capacity in 512 Byte increments. SST’s ADC has up to 2 sector data buffer

for host interface.

3.2.1.4.9 ECC Count

This field defines the number of ECC bytes used on each sector in the Read and Write Long commands.

3.2.1.4.10 Firmware Revision

This field contains the revision of the firmware for this product.

3.2.1.4.11 Model Number

This field contains the model number for this product and is left justified and padded with spaces (20H).

3.2.1.4.12 Read/Write Multiple Sector Count

This field contains the maximum number of sectors that can be read or written per interrupt using the

Read Multiple or Write Multiple commands.

3.2.1.4.13 Capabilities

Bit 13: Standby Timer

Set to 0, forces sleep mode when host is inactive.

Bit 11: IORDY Support

Set to 0, indicates that this device may support IORDY operation.

Bit 9: LBA support

Set to 1, SST’s ADCs support LBA mode addressing.

Bit 8: DMA Support

This bit is set to 0. DMA mode is not supported.

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