oldschooldaw.com
Oldschooldaw.com => General / Miscellaneous => Topic started by: chrisNova777 on December 08, 2018, 07:54:51 AM
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https://en.wikipedia.org/wiki/UDMA
(http://www.oldschooldaw.com/forums/index.php?action=dlattach;topic=5700.0;attach=6710;image)
UDMA0 16MB/s (ATA-4)
UDMA1 25MB/s (ATA-4)
UDMA2 33MB/s (ATA-4)
UDMA3 44MB/s (ATA-5)
UDMA4 66MB/s (ATA-5)
UDMA5 100MB/s (ATA-6)
UDMA6 133MB/s (ATA-7)
UDMA7 167MB/s (CompactFlash 6.0)
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https://en.wikipedia.org/wiki/Parallel_ATA
http://www.pcguide.com/ref/hdd/if/ide/stdATA3-c.html
http://www.informit.com/articles/article.aspx?p=2028834&seqNum=2
1 Standard
2 Proposed
3 Published
4 Withdrawn
5 PIO Modes
6 DMA Modes
7 UDMA Modes
8 Parallel Speed (MBps)
9 Serial Speed (MBps)
1 2 3 4 5 6 7 8 9
ATA-1 1988 1994 1999 0–2 0 — 8.33 -
ATA-2 1993 1996 2001 0–4 0–2 — 16.67 —
ATA-3 1995 1997 2002 0–4 0–2 — 16.67 -
ATA-4 1996 1998 2012 0–4 0–2 0–2 33.33 —
ATA-5 1998 2000 0–4 0–2 0-4 66.67 —
ATA-6 2000 2002 0–4 0–2 0-5 100 —
ATA-7 2001 2004 0–4 0–2 0-6 133 150
ATA-8 2004 0–4 0–2 0-6 133 600
ATA/8? = ATA-1 = 1988+
ATA/16? = ATA-2 = 1993+
ATA/16? = ATA-3 = 1995+
ATA/33 = ATA-4 = 1996+
ATA/66 = ATA-5 = 1998+
ATA/100 = ATA-6 = 2000+
ATA/133 = ATA-7 = 2001+
S.M.A.R.T. = Self-Monitoring, Analysis, and Reporting Technology
ATAPI = AT Attachment Packet Interface
MB = Megabyte; million bytes
GB = Gigabyte; billion bytes
PB = Petabyte; quadrillion bytes
CHS = Cylinder, Head, Sector
LBA = Logical block address
PIO = Programmed I/O
DMA = direct memory access
UDMA = Ultra DMA (direct memory access)
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https://en.wikipedia.org/wiki/Programmed_input/output
(http://www.oldschooldaw.com/forums/index.php?action=dlattach;topic=5700.0;attach=6714;image)
PIO modes
Mode Maximum transfer rate (MB/s) Minimum cycle time Standard where spec is defined
Mode 0 3.3 600 ns ATA-1
Mode 1 5.2 383 ns ATA-1
Mode 2 8.3 240 ns ATA-1
Mode 3 11.1 180 ns ATA-2
Mode 4 16.7 120 ns ATA-2
Mode 5 20 100 ns CompactFlash 2.0
Mode 6 25 80 ns CompactFlash 2.0