reduce the amount of hardware design needed to add external
memory and thus complete a simple design. This type of processor
is gaining popularity with designers.
ueued
SPI-SCI
Time
processor
unit
TPU
Chip
selects
a
n
d
timing
External
bus
interface
System
protect
Clock
T
e
st
(MC68020 subset)
2 kbytes
standby
RAM
C
PU3
2
Core processor
Intermodule bus
The MC68332 block diagram
RISC processors
Until 1986, the expected answer to the question ‘which
processor offers the most performance’ would be the MC68020,
the MC68030 or even the 386! Without exception, CISC processors
such as these, had established the highest perceived perform-
ances. There were more esoteric ...
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