User`s guide

F
F
o
o
r
r
t
t
r
r
e
e
s
s
s
s
7
7
1
1
0
0
0
0
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
169
Open
A
A
A
P
P
M
M
Unlike ACPI, BIOS controls most APM power management functions. AOpen Suspend to Hard
Drive is a good example of APM power management.
A
A
T
T
A
A
/
/
6
6
6
6
ge but doubles UDMA/33ATA/66 uses both rising edge and falling ed transfer rate. The data
MA mode 2, 16.6MB/s x4 = 66MB/s. To use ATA/66,
ATA/100
e and falling
dge as ATA/66
transfer rate is 4 times of the PIO mode 4 or D
you need special ATA/66 IDE cable.
ATA/100
ATA/100 is a new IDE specification under developing. ATA/100 uses both rising edg
e
but clock cycle time is reduced to 40ns. The data transfer rate is (1/40ns) x 2 bytes
-wire IDE cable, the same as ATA/66.
x 2 = 100MB/s. To use ATA/100, you need special 80