Если интерессно ещё.... Я запустил на ВХ udma44 под линуксом, правда не моя заслуга. В google "udma44" + "piix" задать. udma44 - 35 MB/sec, udma33 - 30 MB/sec lspci -vxxx выдаёт(udma44):[] 00:14.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01) (prog-if 80 [Master]) Flags: bus master, medium devsel, latency 64 I/O ports at 2040 [=16] 00: 86 80 11 71 05 00 80 02 01 80 01 01 00 40 00 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
lspci -vxxx
различия между udma44 и udma33:
Если интерессно ещё....
Я запустил на ВХ udma44 под линуксом, правда не моя заслуга.
В google "udma44" + "piix" задать.
udma44 - 35 MB/sec, udma33 - 30 MB/sec
lspci -vxxx
выдаёт(udma44):[]00:14.1 IDE interface: Intel Corp. 82371AB/EB/MB PIIX4 IDE (rev 01) (prog-if 80 [Master])
Flags: bus master, medium devsel, latency 64
I/O ports at 2040 [=16]
00: 86 80 11 71 05 00 80 02 01 80 01 01 00 40 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 41 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40: 07 a3 77 e3 b0 00 00 00 01 00 01 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 28 0f 00 00 00 00 00 00
[/:u]
различия между udma44 и udma33:
< 40: 07 a3 77 e3 b0 00 00 00 01 00 02 00 00 00 00 00
Надеюсь lspci выдаёт нужные регистры, с докой пока не сравнивал.---
> 40: 07 a3 77 e3 b0 00 00 00 01 00 01 00 00 00 00 00
Можно покавырять ide-lib.c и piix.c, код доступен.
Вопрос. UDMA44 это серьёзно, или вне всех стандартов?[/][/]