EM78P468N/EM78P468L

8-Bit Microcontroller

WDT Setting Flowchart

START

N

Use WDT function ?

Y

Enable WDT function : set bit 7 of Code option Word 0 to "0"

Setting WDT prescaler

(IOC81 register)

Disable WDT function : set bit 7 of Code option Word 0 to "1"

WDTtime= prescaler*256/Fs

Fs: sub-oscillator frequency

Enable WDT

(bit 3 of IOC81)

END

TCC Setting Flowchart

START

from External Input

TCC clock source?

External/ instruction cycle

*set clock source from external TCC pin (set bit 4 of IOC71 to "1")

*set P5.6/TCC for TCC input Pin

( set bit 2 of RE to "1" and set bit 6 of IOC 50 to "1")

*choose TCC pin operation edge (set by bit 4 of IOC71)

*choose TCC prescaler

(set by bit 0 to bit 3 of IOC71)

*Enable TCC interrupt Mask (set bit 0 of IOCF0 to "1")

*Clear TCC interrupt Flag (set bit 0 of RF to "0")

from Instruction Cycle

*choose TCC clock source from instruction cycle (set bit 4 of IOC71 to "0")

*choose TCC prescaler

(set by bit 0 to bit 3 of IOC71)

 

Enable TCC to start count

 

 

(use ENI instruction)

 

 

 

 

 

 

 

 

 

END

 

 

 

 

24 •

 

 

Product Specification (V1.5) 02.15.2007

(This specification is subject to change without further notice)

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IBM MiEM78P468L, MiEM78P468N manual Bit Microcontroller WDT Setting Flowchart, TCC Setting Flowchart
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MiEM78P468L, MiEM78P468N specifications

The IBM MiEM78P468N and MiEM78P468L are advanced integrated circuit solutions that cater primarily to the needs of enterprise-level computing systems. These microprocessors are integral in handling a variety of complex tasks, thereby empowering businesses with the efficiency and speed required in today's fast-paced digital environment.

Both models utilize the cutting-edge 78P architecture, which provides impressive performance capabilities. The MiEM78P468N operates at a clock speed of up to 2.2 GHz, while the MiEM78P468L offers a lower clock speed optimized for energy efficiency. This distinction makes the N version ideal for high-performance applications, whereas the L version appeals to scenarios where power consumption is a critical consideration.

A key characteristic of both models is their multi-core architecture, supporting up to four cores. This feature allows for enhanced parallel processing, enabling the handling of multiple tasks simultaneously—a vital requirement for data-intensive applications. Moreover, the inclusion of advanced cache memory arrangements enhances data retrieval speeds significantly, ensuring that applications run smoothly without performance bottlenecks.

These processors also employ cutting-edge thermal management technologies. The dynamic voltage and frequency scaling (DVFS) capabilities ensure that performance can be adjusted in real-time based on workload requirements, helping to minimize energy consumption. This is particularly beneficial in maintaining optimal operating temperatures and prolonging the lifespan of the hardware.

Another notable feature is support for advanced security protocols. Both models incorporate hardware-based security technologies that safeguard data integrity and protect against unauthorized access. This is becoming increasingly important in today's cybersecurity landscape where businesses must prioritize protecting sensitive information.

Additionally, the IBM MiEM78P468N and MiEM78P468L processors are compatible with a wide range of operating systems, facilitating seamless integration into various IT environments. Their robust architecture supports extensive peripheral interconnect protocols, enhancing expandability and connectivity options.

In summary, the IBM MiEM78P468N and MiEM78P468L processors stand out for their performance capabilities, energy efficiency, advanced security features, and versatility. They are well-suited for organizations looking to enhance their computing power while maintaining a balance between performance and power consumption. These microprocessors are instrumental in driving innovation and efficiency in enterprise computing.
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