Deskstar 60GXP
Electrical interface specifications |
Models: IC35L060AVER07, IC35L040AVER07, IC35L030AVER07, IC35L020AVER07, IC35L010AVER07 |
DC
power connector · IDE
interface connector · Cabling · Signal definition · Interface · Commands |
|
DC
power connector
The DC
power connector is designed to mate with AMP part 1-480424 (using AMP
pins P/N 350078-4). Equivalent connectors may be used. Pin assignments
are shown below, viewed from the end of the drive.
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IDE
interface connector
The drive uses
single-ended drivers and receivers. The connector is designed to
mate with 3M part 3417-7000 or equivalent.
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| Note: It is
intended that the drive should only be in electrical contact with
the chassis of the PC at a designated set of mounting holes. Other
electrical contact may degrade error rate performance. As a result
of this it is recommended that there should be no metal contact to
the drive except at the mounting holes or the side rails into which
the mounting holes are tapped. |
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Cabling |
The maximum cable
length from the host system to the drive, plus the circuit pattern
length inside the host systems, must not exceed 18 inches (45.7 cm).
For higher data transfer application (>8.3 MB/sec) a
consideration in system design is recommended to reduce cable noise
and/or cross-talk, such as; shorter cable, bus termination, shielded
cable, etc. |
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Signal
definition |
The pin
assignments of interface signals are listed as follows: |
| Pin |
Signal |
I/O |
Pin |
Signal |
I/O |
| 01 |
-RESET |
I |
02 |
GND |
|
| 03 |
DD07 |
I/O |
04 |
DD08 |
I/O |
| 05 |
DD06 |
I/O |
06 |
DD09 |
I/O |
| 07 |
DD05 |
I/O |
08 |
DD10 |
I/O |
| 09 |
DD04 |
I/O |
10 |
DD11 |
I/O |
| 11 |
DD03 |
I/O |
12 |
DD12 |
I/O |
| 13 |
DD02 |
I/O |
14 |
DD13 |
I/O |
| 15 |
DD01 |
I/O |
16 |
DD14 |
I/O |
| 17 |
DD00 |
I/O |
18 |
DD15 |
I/O |
| 19 |
GND |
|
(20) |
KEY |
|
| 21 |
DMARQ |
O |
22 |
GND |
|
| 23 |
-DIOW
* |
I |
24 |
GND |
|
| 25 |
-DIOR
* |
I |
26 |
GND |
|
| 27 |
IORDY
* |
O |
28 |
CSEL |
I |
| 29 |
-DMACK |
I |
30 |
GND |
|
| 31 |
INTRQ |
O |
32 |
-IOCS16** |
O |
| 33 |
DA01 |
I |
34 |
-PDIAG |
I/O |
| 35 |
DA00 |
I |
36 |
DA02 |
I |
| 37 |
-CSO |
I |
38 |
-CS1 |
I |
| 39 |
-DASP |
I/O |
40 |
GND |
|
|
Notes: |
- "O" designates an output from the drive.
- "I" designates an input from the drive.
- "I/O" designates an input/output common.
- "*" these signal lines are redifined during the
Ultra DMA protocol to provide special functions as detailed
in the table below.
- "**" this signal complies with ATA-2
specifications.
|
| |
| Operation |
Special Definition (Ultra DMA) |
Conventional Definition |
| Write |
-DDMARDY |
IORDY |
| HSTROBE |
-DIOR |
| STOP |
-DIOW |
| Read |
-HDMARDY |
-DIOR |
| DSTROBE |
IORDY |
| STOP |
-DIOW |
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Interface |
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The interface conforms to the working document of information
technology - AT attachment with Packet Interface Extension.
Check power mode
Check Power Mode command returns FFh to the sector count register
when the drive is in idle mode. This command does not support 80h as
the return value.
Hard reset
Hard reset response is identical to a soft reset response with the
following exception: in a hard reset, the drive goes through the
Master/Slave handshake to determine if a slave is present, in a soft
reset this handshake does not occur. In a hard reset the Master
drive looks at the DASP line to determine if it is asserted
indicating a slave is present. The Master drive also checks the
PDIAG line to see if the Slave has passed its internal diagnostics. |
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