TEI FDC-3 User Manual page 7

DRIVE
a
Dr ive #
/
Datil
Reset ....
i '
Read/Write
Drive-Select ~
,-
1791 v
Clk
Clock
Raw Dat
Latch
i '
Generator
v
Rd Clk
i '
Earlv -
~
..
Lat0 -
Do
Bid i rectional
/
Dal ....
Write Data ....
DI
Buss Driver
......
,-
::.
Write Gate
Di rect ion
~
"
Step
....
Head Load
"
'/
Head Loadedl Delay
1
......
Address
"
A2-A7
---
,
Write Fault
~
Decoder
A2
' /
F
I '
-----0
I . /
Write Protect
MatrIx G
Index Pulse
AD. Al
.....
......
".
1/
Ready
I
......
I
Delav
SINP
R/W
.....
SOUT
Function ".
1/
Track. 0
PD BIN
Select
PWR
Logic
Figure
3-1
FDC-3 Floppy-Disk Controller Card Block Diagram