user manual
5-38 Computer Group Literature Center Web Site
Transition/Bridge Modules
5
Floppy Header (J9)
33 DA1 Drive register
and data port
address lines
34 PDIAG Output from
drive 1 and
monitored
by drive 0
35 DA0 Drive register
and data port
address lines
36 DA2 Drive
register and
data port
address lines
37 CS1 Chip select
drive 0, also
command
register block
select
38 CS3 Chip select
drive 1, also
command
register
block select
39 DASP Drive active
slave present
40 GND Ground
Table 5-20. EIDE Header (J5) Pin Assignments
Pin
Signal
Mnemonic
Signal
Description Pin
Signal
Mnemonic
Signal
Description
Table 5-21. Floppy Header (J9) Pin Assignments
Pin
Signal
Mnemonic
Signal
Description 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 Beginning of a
track