BCA-100 IO card Settings and Configuration

Card Type	Serial/Parallel interface
Chipset/Controller	Zilog
I/O Options	Serial/Parallel port
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
DB-25 serial/parallel port	CN1	Standy clock output	J4

BASE MEMORY ADDRESS SELECT
Address	SW1/1	SW1/2	SW1/3	SW1/4	SW1/5	SW1/6
27Xh	Off	On	On	Off	Off	Off
2EXh	Off	On	Off	Off	Off	On
2FXh	Off	On	Off	Off	Off	Off
37Xh	Off	Off	On	Off	Off	Off
3EXh	Off	Off	Off	Off	Off	On
3FXh	Off	Off	Off	Off	Off	Off

CLOCK SPEED SELECT
Divide by	J7
1	Pins 1 & 2 closed
2	Pins 2 & 3 closed

DTE/DCE CONFIGURATION
Jumper	J5 (DTE)	J6 (DCE)
A	On	Off
B	On	Off
C	On	Off
D	On	Off
E	On	Off
F	Off	Off
G	On	On
H	On	Off
I	Off	Off
J	On	Off
K	Off	Off

INTERRUPT SELECT
IRQ	J1/A	J1/B	J1/C	J1/D	J1/E	J1/F
IRQ2	Closed	Open	Open	Open	Open	Open
IRQ3	Open	Closed	Open	Open	Open	Open
IRQ4	Open	Open	Closed	Open	Open	Open
IRQ5	Open	Open	Open	Closed	Open	Open
IRQ6	Open	Open	Open	Open	Closed	Open
IRQ7	Open	Open	Open	Open	Open	Closed

RECEIVE CLOCK SOURCE
Source	J3/A	J3/B	J3/C
TXCA clock	On	Off	Off
RXCi external clock	Off	On	Off
CLKA	Off	Off	On

TRANSMIT CLOCK SOURCE
Source	J2/A	J2/B	J2/C
RXCA clock	On	Off	Off
TXCi external clock	Off	On	Off
CLKB	Off	Off	On