Ata Modes; Ata Addressing - Freescale Semiconductor MPC5200B User Manual

Interface Standard
Standard Type
IDE/ATA ANSI
ATA-2 ANSI
FAST ATA Marketing
Fast ATA-2 Marketing
ATA-3 Unofficial
Ultra ATA Unofficial
ATAPI ANSI
EIDE Marketing
ATA-4 ANSI
11.7.2

ATA Modes

Mode
PIO mode 0
PIO mode 1
PIO mode 2
PIO mode 3
PIO mode 4
DMA mode 0 (Multiword)
DMA mode 1 (Multiword)
DMA mode 2 (Multiword)
Ultra DMA mode 0
Ultra DMA mode 1
Ultra DMA mode 2
11.7.3

ATA Addressing

In the ATA interface, there are two aspects of addressing that are present: register addressing and sector addressing. These are discussed in
the next sections.
Freescale Semiconductor
Table 11-35. ATA Standards
PIO Modes DMA Modes
0,1,2 Single word—0,1,2
Multiword—0
0,1,2,3,4 Single word—0,1,2
Multiword—0,1,2
0,1,2,3 Single word—0,1,2
Multiword 0,1
0,1,2,3,4 Single word—0,1,2
Multiword—0,1,2
0,1,2,3,4 Single word—0,1,2
Multiword—0,1,2
0,1,2,3,4 Single word—0,1,2
Multiword—0,1,2,3
0,1,2,3,4 Single word—0,1,2
Multiword—0,1,2
0,1,2,3,4 Single word—0,1,2
Multiword—0,1,2
0,1,2,3,4 Multiword—0,1,2
Ultra DMA—0,1,2
Table 11-36. ATA Physical Level Modes
Cycle Time (ns)
600
383
240
180
120
480
150
120
114
75
55
MPC5200B Users Guide, Rev. 1
Special Features or Enhancements
introduced Relative to IDE/ATA
—
Block transfers, logical block addressing,
improved identify drive command
Same as ATA-2
Same as ATA-2
Same as ATA-2, plus improved reliability, SMART
Same as ATA-3
Support for non-hard-disk devices CD-ROM,
Tape drives, etc.
Same as ATA-2, plus ATAPI and dual host
adapters
Same as ATA-3, Single word DMA retired
Transfer Rate (MB/s)
3.3
5.2
8.3
11.1
16.7
4.2
13.3
16.7
16.7
25
33
ATA Bus Background
Standard
ATA
ATA
ATA
ATA-2 (IORDY required)
ATA-2 (IORDY required)
ATA
ATA-2
ATA-2
ATA-4
ATA-4
ATA-4
11-27