HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
17
5.1.2
Signal definition(PATA model)
The pin assignments of interface signals are listed in the figure below:
PIN
SIGNAL
I/O
Type
PIN
SIGNAL
I/O
Type
01
RESET-
I
TTL
02
GND
03
DD7
I/O
3-state
04
DD8
I/O
3-state
05
DD6
I/O
3-state
06
DD9
I/O
3-state
07
DD5
I/O
3-state
08
DD10
I/O
3-state
09
DD4
I/O
3-state
10
DD11
I/O
3-state
11
DD3
I/O
3-state
12
DD12
I/O
3-state
13
DD2
I/O
3-state
14
DD13
I/O
3-state
15
DD1
I/O
3-state
16
DD14
I/O
3-state
17
DD0
I/O
3-state
18
DD15
I/O
3-state
19
GND
(20)
key
21
DMARQ
O
3-state
22
GND
23
DIOW-(*)
I
TTL
24
GND
25
DIOR-(*)
I
TTL
26
GND
27
IORDY(*)
O
3-state
28
CSEL
I
TTL
29
DMACK-
I
TTL
30
GND
31
INTRQ
O
3-state
32
I
33
DA1
I
TTL
34
PDIAG-
I/O
OC
35
DA0
I
TTL
36
DA2
I
TTL
37
CSO-
I
TTL
38
CS1-
I
TTL
39
DASP-
I/O
OC
40
GND
Table 11 Table of signals
Notes:
1. "O" designates an output from the drive.
2. "I" designates an input to the drive.
3. "I/O" designates an input/output common.
4. "OC" designates open-collector or open-drain output.
5. The signal lines marked with (*) are redefined during the Ultra DMA protocol to provide special
functions. These lines change from the conventional to special definitions at the moment the Host
decides to allow a DMA burst if the Ultra DMA transfer mode was previously chosen via SetFeatures.
The Drive becomes aware of this change upon assertion of the DMACK- line. These lines revert back
to their original definitions upon the deassertion of DMACK- at the termination of the DMA burst.
Special Definition
(for Ultra DMA)
Conventional Definition
Write Operation
DDMARDY-
HSTROBE
STOP
IORDY
DIOR-
DIOW-
Read Operation
HDMARDY-
DSTROBE
STOP
DIOR-
IORDY
DIOW-
Table 12 Signal special definitions for Ultra DMA
Содержание 3.5-INCH Deskstar HDP725050GLAT80
Страница 11: ...HITACHI Deskstar CinemaStar P7K500 Hard Disk Drive specification Rev 1 1 1 ...
Страница 14: ...HITACHI Deskstar CinemaStar P7K500 Hard Disk Drive specification Rev 1 1 5 Part 1 Functional specification ...
Страница 65: ...HITACHI Deskstar CinemaStar P7K500 Hard Disk Drive specification Rev 1 1 57 Part 2 Interface Specification ...
Страница 118: ...HITACHI Deskstar CinemaStar P7K500 Hard Disk Drive specification Rev 1 1 110 ...
Страница 122: ...HITACHI Deskstar CinemaStar P7K500 Hard Disk Drive specification Rev 1 1 114 ...
Страница 273: ...HITACHI Deskstar CinemaStar P7K500 Hard Disk Drive specification Rev 1 1 265 ...
Страница 278: ...HITACHI Deskstar CinemaStar P7K500 Hard Disk Drive specification Rev 1 1 270 ...