Table 23
FDC Signal Descriptions
Signal
Description of FDC signals (shared with
LPT)
I/O
PU/PD
Comment
FLPY#
Floppy Interface configuration input
N.A.
Not supported, see
section 4.3.6 for more
information.
RES
N.C.
N.A.
Not available
DENSEL
Density select: low = 250/300Kb/s high =
500/1000Kb/s
O 5V
INDEX#
Index signal
I 5V
TRK0#
Track signal
I 5V
WP#
Write protect signal
I 5V
RDATA#
Raw data read
I 5V
DSKCHG#
Disk change
I 5V
HDSEL#
Head select
O 5V
DIR#
Direction
O 5V
STEP#
Motor step
O 5V
DRV
Drive select
O 5V
MOT#
Motor select
O 5V
WDATA#
Raw write data
O 5V
WGATE#
Write enable
O 5V
Table 24
Floppy Support Mode Pinout
Floppy Support Mode Pinout
Pin
Signal
Pin
Signal
51
FLPY# (*)
52
RESERVED
53
VCC
54
GND
55
RESERVED
56
DENSEL
57
RESERVED
58
RESERVED
59
IRRX
60
HDSEL#
61
IRTX
62
RESERVED
63
RXD2
64
DIR#
65
GND
66
GND
67
RTS2#
68
RESERVED
69
DTR2#
70
STEP#
71
DCD2#
72
DSKCHG#
73
DSR2#
74
RDATA#
75
CTS2#
76
WP#
77
TXD2
78
TRK0#
79
RI2#
80
INDEX#
81
VCC
82
VCC
83
RXD1
84
DRV
85
RTS1#
86
MOT
87
DTR1#
88
WDATA#
89
DCD1#
90
WGATE#
91
DSR1#
92
MSCLK
93
CTS1#
94
MSDAT
95
TXD1
96
KBCLK
97
RI1#
98
KBDAT
99
GND
100
GND
Note
The signals marked with an asterisk symbol (*) are not supported on the
conga-X945/XA945.
Copyright © 2006 congatec AG
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