AN 265: Using Altera MAX Series as Microcontroller I/O Expanders

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ID 683386
Date 9/22/2014
Public
Document Table of Contents
Document Table of Contents x
1. Using Altera MAX Series as Microcontroller I/O Expanders
1. Using Altera MAX Series as Microcontroller I/O Expanders x
1.1. Advantages of Using Altera Devices as I/O Expanders 1.2. Microcontroller I/O Expander Implementation 1.3. Microcontroller I/O Expander Configuration 1.4. Resource Usage in Microcontroller I/O Expander Target Devices 1.5. Microcontroller I/O Expander Design Verification 1.6. Microcontroller I/O Expander Application 1.7. Document Revision History
1.2. Microcontroller I/O Expander Implementation x
1.2.1. Pin Functions in the Microcontroller I/O Expander 1.2.2. Functional Description of the Microcontroller I/O Expander
1.5. Microcontroller I/O Expander Design Verification x
1.5.1. Simulating Microcontroller I/O Expander Write Mode Timing 1.5.2. Simulating Microcontroller I/O Expander Read Mode Timing
1. Using Altera MAX Series as Microcontroller I/O Expanders

1.4. Resource Usage in Microcontroller I/O Expander Target Devices

There are sufficient resources in the target devices to implement the design example and other logic.
Table 5.  Device Targets to Implement the Microcontroller I/O Expander Design ExampleThis table lists the devices that you can target with the design example using the Quartus® II software and their resource utilization.
Family Device Resource Utilization
Resource Availability Usage Utilization (%)
MAX 3000A EPM3128ATC100 Macrocells 128 51 39
Flipflops 128 50 39
I/O pins 80 48 60
Shareable expanders 128 2 1
MAX II EPM240T100C3 Logic elements 240 67 27
Flipflops 240 50 20
I/O pins 80 48 60
MAX 10 FPGA 10M08SAE144C8G Logic elements 8064 75 0.9
Flipflops 8064 59 0.7
I/O pins 103 48 47
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