May 2024
Intermediate to advanced
889 pages
30h 8m
English
book
The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
by Lyla B. Das
Content preview from The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
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6-14
THE
x86 MICROPROCESSORS
Why the push button switch? To start a new reset cycle – if the switch is pressed, the
capacitor discharges, and to re-start, the whole process should start again.
When using a crystal for frequency generation, the F / C pin of the 8284 IC
must be grounded. If this pin is high, the EF1 pin should be connected to an exter-
nal oscillator and a pin CSYNC is used to provide synchronization in this case.
Since we are using a crystal in our circuit, the pins F / C and CSYNC are grounded in
Fig. 6.11.
6.2 | Clock
It has been mentioned that all activities on the system bus are synchronized by the sys-
tem clock which pro ...
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