Gideon ULTIMATE - 64 elite - Page 25

25
USER PORT
User Port Extension Header
Pin
Name
Description
Special Purpose
1
GND
Ground
2
+5V
+5 VDC (200 mA max)
3
/RESET
Reset, will force a Cold Start. Also a reset output for devices.
4
CNT1
Counter 1, from CIA #1
5
SP1
Serial Port 1, from CIA #1
6
CNT2
Counter 2, from CIA #2
7
SP2
Serial Port 2, from CIA #2
8
/PC2
Handshaking line, from CIA #2
9
ATN
Serial Attention
10
12VDC
12VDC (Max 500mA)
11
12VDC
12VDC (Max 500mA)
12
GND
Ground
13
USRCTL0
FPGA Pin, NOT 5V tolerant!
LED Clock
A
GND
Ground (RS232: GND)
B
/FLAG2
Flag 2 (RS232: RxD=Both B+C)
C
PB0
Data 0 (RS232: RxD=Both B+C)
D
PB1
Data 1 (RS232: RTS)
E
PB2
Data 2 (RS232: DTR)
F
PB3
Data 3 (RS232: RI)
H
PB4
Data 4 (RS232: DCD)
J
PB5
Data 5
K
PB6
Data 6 (RS232: CTS)
L
PB7
Data 7 (RS232: DSR)
M
PA2
PA2 (RS232: TxD)
N
GND
Ground (RS232: GND)
P
USRCTL1
FPGA Pin, NOT 5V tolerant!
LED Data