Signal Definitions; Figure 33. Table Of Signals - IBM DJSA-210 - Travelstar 10 GB Hard Drive Specifications

7.3 Signal definitions

The pin assignments of interface signals are listed as follows:
PIN SIGNAL
01 –RESET
03 DD07
05 DD06
07 DD05
09 DD04
11 DD03
13 DD02
15 DD01
17 DD00
19 GND
21 DMARQ
23 –DIOW(*)
25 –DIOR(*)
27 IORDY(*)
29 –DMACK
31 INTRQ
33 DA01
35 DA00
37 –CS0
39 –DASP
41 + 5V logic
43 GND
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. "OD" designates an 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.
6. "power" designates a power supply to the drive.
7. "reserved" designates reserved pins which must be left unconnected.

Figure 33. Table of signals

I/O Type
I TTL
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
O 3–state
I TTL
I TTL
O OD
I TTL
O 3–state
I TTL
I TTL
I TTL
I/O OD
power
Travelstar 32GH/30GT/20GN hard disk drive specifications
PIN SIGNAL
02 GND
04 DD08
06 DD09
08 DD10
10 DD11
12 DD12
14 DD13
16 DD14
18 DD15
(20) Key
22 GND
24 GND
26 GND
28 CSEL
30 GND
32 –IOCS16(*)
34 –PDIAG
36 DA02
38 –CS1
40 GND
42 + 5V motor
44 (reserved)
42
I/O Type
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I/O 3–state
I TTL
O OD
I/O OD
I TTL
I TTL
power