TS2GBCF100I Transcend Information. Inc., TS2GBCF100I Datasheet - Page 19

• Manufacturer Part Number: TS2GBCF100I
• Description: Transcend Industrial Cf Card
• Manufacturer: Transcend Information. Inc.

Transcend Information Inc.
Printed Circuit Board (PCB) Trace Requirements for Ultra DMA
Ultra DMA Mode Cabling Requirement
On any PCB for a host or device supporting Ultra DMA:
The longest D[15:00] trace shall be no more than 0.5" longer than either STROBE trace as measured from the
IC pin to the connector.
The shortest D[15:00] trace shall be no more than 0.5" shorter than either STROBE trace as measured from
the IC pin to the connector.
Operation in Ultra DMA mode requires a crosstalk suppressing cable. The cable shall have a grounded line
between each signal line.
For True IDE mode operation using a cable with IDE (ATA) type 40 pin connectors it is recommended that the
host sense the cable type using the method described in the ANSI INCITS 361-2002 AT Attachment - 6
standard, to prevent use of Ultra DMA with a 40 conductor cable.
T
T
T
r
r
r
a
a
a
n
n
(
n
(
(
T
T
T
s
s
s
Table: Ultra DMA Termination with Pull-up or Pull down Example
S
S
S
c
c
c
1
e
1
e
1
e
2
n
2
n
2
n
8
8
d
8
d
d
M
M
M
I
I
I
n
n
n
~
~
~
d
d
d
u
u
1
1
u
1
6
s
6
s
6
s
G
t
t
G
G
t
r
r
r
i
i
C
i
C
C
a
a
a
F
F
l
F
l
l
1
C
C
1
C
1
0
0
19
0
F
F
F
0
0
0
C
I
C
I
C
I
)
)
)
a
a
a
r
r
r
d
d
d
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