SST55LD019C-45-I-MVWE View Datasheet(PDF) - Silicon Storage Technology
Part Name
Description
Manufacturer
SST55LD019C-45-I-MVWE Datasheet PDF : 79 Pages
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ATA Flash Disk Controller
SST55LD019A / SST55LD019B / SST55LD019C
Data Sheet
11.2.1.6.20 Word 63: Multi-word DMA Transfer Mode
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
Function
15-11
Reserved
10
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.
9
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.
8
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.
7-3
Reserved
2
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.
1
Multi-word DMA mode 1 supported
1: Multi-word DMA mode 1 and below are supported.
0
Multi-word DMA mode 0 supported
1: Multi-word DMA mode 0 is supported.
11.2.1.6.21 Word 64: Advanced PIO Data Transfer Mode
Bit
Function
0
1: ATA Flash Disk Controller supports PIO Mode-3.
1
1: ATA Flash Disk Controller supports PIO Mode-4.
11.2.1.6.22 Word 65: Minimum Multi-word DMA Transfer Cycle Time Per Word
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.
©2006 Silicon Storage Technology, Inc.
31
S71241-04-000
12/06
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