STB SYSTEMS, INC.
RIO PLUS
Card Type |
Memory/Multi-I/O |
Maximum Onboard Memory |
384KB DRAM |
I/O Options |
Apple ][ game port, clock/calendar, parallel port, SASI hard drive controller, serial port |
Data Bus |
8-bit ISA |
Hard Drives Supported |
Up to seven SASI drives |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
Apple ][ game port |
J1 |
Parallel or SASI port |
J4 |
Unidentified |
J2 |
Serial port |
J5 |
1.5V AA battery connector |
J3 |
USER CONFIGURABLE SETTINGS | |||
Setting |
Label |
Position | |
» |
Memory enabled |
SW1/3 |
On |
Memory disabled |
SW1/3 |
Off | |
» |
Parallel port address is 378h |
SW1/6 |
Off |
Parallel port address is 278h |
SW1/6 |
On | |
» |
Serial port address is 3F8h (COM1:) |
SW1/7 |
Off |
Serial port address is 2F8h (COM2:) |
SW1/7 |
On | |
» |
J4 is a parallel port |
SW1/8 |
Off |
J4 is a SASI port |
SW1/8 |
On |
DRAM | ||||||
Size |
Bank 0 |
Parity 0 |
Bank 1 |
Parity 1 |
Bank 2 |
Parity 2 |
64KB |
(8) 64K x 1 |
(1) 64K x 1 |
NONE |
NONE |
NONE |
NONE |
128KB |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
NONE |
NONE |
192KB |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
256KB |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
320KB |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
384KB |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
DRAM (CON’T) | ||||||
Size |
Bank 3 |
Parity 3 |
Bank 4 |
Parity 4 |
Bank 5 |
Parity 5 |
64KB |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
128KB |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
192KB |
NONE |
NONE |
NONE |
NONE |
NONE |
NONE |
256KB |
(8) 64K x 1 |
(1) 64K x 1 |
NONE |
NONE |
NONE |
NONE |
320KB |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
NONE |
NONE |
384KB |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
(8) 64K x 1 |
(1) 64K x 1 |
Note:The information of which chips are the parity chips is unidentified. |
MAINBOARD MEMORY | ||
Size |
SW1/1 |
SW1/2 |
64KB |
On |
On |
128KB |
On |
Off |
256KB |
Off |
On |
320KB |
Off |
Off |
SERIAL PORT INTERRUPT | ||
Setting |
SW1/4 |
SW1/5 |
IRQ3 |
Off |
On |
IRQ4 |
On |
Off |