What does the Z80 PIO do in a ROM chip?
Take this diagram, from the Z80 CPU datasheet: This is an example of how to use the Z80 CPU with the Z80 PIO and a ROM chip. So, my understanding of the Z80 PIO is this: The CPU can send data to it so that it can send that data to perhipherals such as a keyboard. It can send data to the CPU from peripherals.
When does the Zilog Z80 PIO acknowledge an interrupt?
This signal from the CPU is used as a sync pulse to control several internal PIO operations. When /M1 is active and the /RD signal is active, the Z80-CPU is fetching an instruction from memory. Conversely, when /M1 is active and /IORQ is active, the CPU is acknowledging an interrupt.
What does the Z80 I / O port do?
It is just a digital parallel I/O port. You can configure the individual port pins as digital inputs or outputs and then use them for whatever you want. If you were to configure a pin as output and connect a LED to it (with proper buffering) the Z80 would be able to turn the LED on and off.
Is the 64180 microprocessor compatible with the Z80?
The 64180/Z180 microprocessor integrates many of the functions traditionally assigned to peripheral circuitry onto a single chip. The designers picked an architecture compatible with the Z80, giving Z80 users a completely software compatible upgrade path.
https://www.youtube.com/watch?v=bCdfLv_SNmc
Can a Z80 CPU be used in life support?
Z80 CPU User Manual DO NOT USE THIS PRODUCT IN LIFE SUPPORT SYSTEMS. LIFE SUPPORT POLICY ZILOG’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION.
Is the Z80 CPU a trademark of Zilog?
Z80, Z180, Z380 and Z80382 are trademarks or registered trademarks of Zilog, Inc. All other product or service names are the property of their respective owners. Warning: UM008011-0816 Revision History