2-22
Computer Group Literature Center Web Site
Installing the CPTM-01
2
Floppy Connector
Table 2-18. CPTM-01 Floppy Connector (J9)
Pin Signal
Mnemonic
Signal
Description
1
GND
Drive Common
2
DRVDENS0
Disk density select communication
3
-
-
4
-
-
5
GND
Drive Common
6
DRVDENS1
Disk density select communication
7
GND
Drive Common
8
INDEX-
Indicates the beginning of a track
9
GND
Drive Common
10
MTR0-
Motor enable outputs
11
GND
Drive Common
12
DS1-
Drive select 1
13
GND
Drive Common
14
DS0-
Drive select 0
15
GND
Drive Common
16
MTR1-
Motor enable outputs
17
GND
Drive Common
18
DIR-
Controls the direction of the FDD head during seek operations
19
GND
Drive Common
20
STEP-
Supplies step pulses to move head during seek operations
21
GND
Drive Common
22
WDATA-
Writes serial data to disk drive
23
GND
Drive Common
24
WGATE-
Enables head of disk drive to write to disk
25
GND
Drive Common
26
TR0-
Indicates that head of FDD is at track 0
27
GND
Drive Common