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3.5.3.2. USB 0 and 1 Interfaces
Signal
Pin Assignation
USB1:D+
B18, C18, D19, E19
D18, B19
USB0, 1:GND
E18, C19
USB0,1 :VCC
3.5.3.3. Floppy Disk Interface
Signal
Pin Assignation
FD:DRVEN0-1 #
E7, A8
FD:INDEX#
B8
FDMTR0-1#
C8, A9
FD:DS0-1#
E8, D8
FD:DIR#
B9
FD:STEP#
C9
FD:WDATA#
D9
FD:WGATE#
E9
FD:TRK0#
A10
FD:WRTPRT#
B10
FD:RDATA#
C10
FD:HDSEL#
D10
FD:DSKCHG#
E10
3.5.3.4. Serial Port 2
Signal
Pin Assignation
COM2:DCD
A11
COM2:RXD
C11
COM2:DSR
D11
COM2:TXD
E11
COM2:RTS
A12
COM2:CTS
B12
COM2:RI
C12
COM2:DTR
E12
Description
USB Data – Differential data path for USB 0 and 1 ports
USB Ground – Differential ground reference for USB 0
and 1 ports
USB Voltage – Differential power level for USB 0 and 1
ports
Description
Drive 0-1 density select
Index
Motor 0-1 enable
Drive 0-1 select
Direction
Step pulse
Write disk data
Write gate
Track 0
Write protected
Read disk data
Head select
Disk change
Description
Data Carrier Detect
Receive Data
Data Set Ready
Transmit Data
Ready To Send
Clear To Send
Ring Indicator
Data Terminal Ready
3.37
Installing the Board
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