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The
68230 Board |
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This board
provides two 8-bit ports, a software programmable timer
interrupt mechanism, and a bit banged I2C interface with
an on board I2C Real Time Clock (RTC). The board uses
the Motorola 68230 Parallel Interface & Timer IC or
PIT for short. |
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Compatibility |
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This boards compatibility
is limited to 4-8MHz Mega-68000 Computer Systems. |
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Each 8-bit
port can be software configured as an input or output
port. The board can optionally be kitted out with one of the
following on each port: |
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| 8-bit LED
display |
| 8-bit DIP
switch |
| 8-bit Jumper
Block |
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The 24-bit programmable
timer can be clocked up to a maximum frequency of 10MHz from the main system clock or
from a
totally independent on board
DIP-8 or DIP-14 clock oscillator
module. |
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In addition to
the above, all 16 port pins are routed to an I/O connector thus
external hardware can easily be interfaced to a
Mega-680x0 Computer System using this board. |
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| Note: |
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Provided each
board has a unique address, multiple
boards may be added to scale up the I/O. |
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