SST55LD019A Silicon Storage Technology, Inc., SST55LD019A Datasheet - Page 29

• Manufacturer Part Number: SST55LD019A
• Description: Ata Flash Disk Controllersst's Ata Flash Disk Controller is The Heart of a High Performance, Flash Media-based Data Storage System. The Ata Flash Disk Controller Recognizes The Control, Address, And Data Signals on The Ata/ide Bus And Translates Them
• Manufacturer: Silicon Storage Technology, Inc.

ATA Flash Disk Controller
SST55LD019A / SST55LD019B / SST55LD019C
11.2.1.6.17 Word 57-58: Current Capacity
11.2.1.6.18 Word 59: Multiple Sector Setting
11.2.1.6.19 Word 60-61: Total Sectors Addressable in LBA Mode
11.2.1.6.20 Word 63: Multi-word DMA Transfer Mode
11.2.1.6.21 Word 64: Advanced PIO Data Transfer Mode
11.2.1.6.22 Word 65: Minimum Multi-word DMA Transfer Cycle Time Per Word
©2004 Silicon Storage Technology, Inc.
This field contains the product of the current cylinders times heads times sectors.
This field contains a validity flag in the Odd Byte and the current number of sectors that can be
transferred per interrupt for Read/Write Multiple in the Even Byte. The Odd Byte is always 01H which
indicates that the Even Byte is always valid.
The Even Byte value depends on the value set by the Set Multiple command. The Even Byte of this
word by default contains a 00H which indicates that Read/Write Multiple commands are not valid.
This field contains the number of sectors addressable for the ATA Flash Disk Controller in LBA mode only.
This field identifies the multi-word DMA transfer modes supported by the ATA Flash Disk Controller and
indicates the mode that is currently selected. Only one DMA mode can be selected at any given time.
Bit
15-11
10
9
8
7-3
2
1
0
Bit
0
1
This field defines the minimum Multi-word DMA transfer cycle time per word. This field defines, in
nanoseconds, the minimum cycle time that the ATA Flash Disk Controller supports when performing
Multi-word DMA transfers on a per word basis. SST’s ATA Flash Disk Controller supports up to Multi-
word DMA Mode-2, so this field is set to 120ns.
Function
Reserved
Multi-word DMA mode 2 selected
1: Multi-word DMA mode 2 is selected and bits 8 and 9 are cleared to 0
0: Multi-word DMA mode 2 is not selected.
Multi-word DMA mode 1 selected
1: Multi-word DMA mode 1 is selected and 8 and 10 should be cleared to 0.
0: Multi-word DMA mode 1 is not selected.
Multi-word DMA mode 0 selected
1: Multi-word DMA mode 0 is selected and bits 9 and 10 are cleared to 0.
0: Multi-word DMA mode 0 is not selected.
Reserved
Multi-word DMA mode 2 supported
1: Multi-word DMA mode 2 and below are supported and Bits 0 and 1 are set to 1.
Multi-word DMA mode 1 supported
1: Multi-word DMA mode 1 and below are supported.
Multi-word DMA mode 0 supported
1: Multi-word DMA mode 0 is supported.
Function
1: ATA Flash Disk Controller supports PIO Mode-3.
1: ATA Flash Disk Controller supports PIO Mode-4.
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Advance Information
S71241-02-000
4/04