Pin No.
Signal name
I/O
Signal Description
1 GND
Power Ground
2 +5V
Power Supply
3 GND
Power Ground
4 GND
Power Ground
5 N.C
6
DR0
O
Drive Select 0. Select drive 0.
7
MTR0
O
Motor Control 0
8
DIR
O
Direction. Direction of head movement (0 =
inward motion, 1 = outward motion)
9
WDATA
O
Write Data. Encoded data to the drive for write
operations.
10 GND
Power Ground
11
DRVDEN0
O
Drive density select 0
12
RDATA
I
Read Data. Raw serial bit stream from the
drive for read operations.
13 N.C
14 N.C
15 N.C
16 N.C
17
INDEX
I
Index. Sense to detect that the head is
positioned over the beginning of a track
18 N.C
19 N.C
20 GND
Power Ground
21
STEP
O
Step. Low pulse for each track-to-track
movement of the head.
22
WGATE
O
Write Gate. Signal to the drive to enable
current flow in the write head.
23
TRK0
I
Track 0. Sense to detect that the head is
positioned over track 0.
24 WRTPROT
I
Write
Protect.
Sense for detection that the
SurePOS 500 Model XX3 Technical Reference, v 1.3 Page 53 of
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Summary of Contents for 4840-563
Page 15: ...Chapter 3 Architectural Overview SurePOS 500 Model XX3 Technical Reference v 1 3 Page 15 of 81...
Page 17: ...Main Board Block Diagram SurePOS 500 Model XX3 Technical Reference v 1 3 Page 17 of 81...
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Page 81: ...END OF DOCUMENT SurePOS 500 Model XX3 Technical Reference v 1 3 Page 81 of 81...
