AN2323 Freescale Semiconductor / Motorola, AN2323 Datasheet
AN2323
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AN2323 Summary of contents
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... Freescale Semiconductor, Inc. Application Note AN2323 Rev. 0.2, 11/2003 PowerPC™ MPC7455 I/O Power Evaluation Jonathon Miller I/O power consumption for the PowerPC™ MPC7455 is not explicitly listed in the current CPD Applications MPC7455 Hardware Specification; however suggested that a typical value is less than 20 ...
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Freescale Semiconductor, Inc. Evaluating Signal Transitions Evaluating Signal Transitions 1.2 Evaluating Signal Transitions To evaluate signal transitions, a perl script was written to retrieve data line by line from the logic analyzer listings, count the number of transitions per signal, ...
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Freescale Semiconductor, Inc. some additional current from the Tundra Tsi107™ PowerPC host bridge and buffer. This additional current is very small and does not dramatically effect the measurements. Figure 2-2. Actual Measurement Schematic 2.1 Actual Power Measurement Results Using the ...
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Freescale Semiconductor, Inc. Measured Power for all EEMBC Benchmarks Measured Power for all EEMBC Benchmarks again as Figure 2-2 depicts, the Tsi107 host bridge and buffer have an effect on the current measurement but their effect is small. This theory ...
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Freescale Semiconductor, Inc. Table 2. Power Values at Varying Frequencies (in mW) Value 66 MHz Initial Theoretical Power Power Losses Total Theoretical Power Measured Power Figure 3-5 shows a graphical depiction of the data, and it shows that measured power ...
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Freescale Semiconductor, Inc. Estimating Max I/O Power Estimating Max I/O Power The routine loads two 32k blocks of memory with alternating lines of 5s and As. Then, in the main loop, it continuously bursts data into the cache, alternating between ...
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Freescale Semiconductor, Inc. Conclusion Although I/O power is not defined in the hardware specification for the MPC7455 defined typically to be less than 20 power frequency of 800 MHz (which is the processor ...
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... Tsi106, Tsi107, and Silicon Behind the Network are all trademarks of Tundra Semiconductor Corporation. All other product or service names are the property of their respective owners. Motorola, Inc Equal Opportunity/Affirmative Action Employer. © Motorola, Inc. 2003 AN2323 For More Information On This Product, Go to: www.freescale.com ...