EM78P468N/EM78P468L

8-Bit Microcontroller

Bit 4: Not used

Bit 3 (IROUTE): Define the function of P5.7/IROUT pin.

IROUTE = “0” : for bi-directional general I/O pin.

IROUTE = “1” : for IR or PWM output pin, the control bit of P5.7 (Bit 7 of IOC50)

must be set to “0”

Bit 2 (TCCE): Define the function of P5.6/TCC pin. TCCE = “0” : for bi-directional general I/O pin.

TCCE = “1” : for external input pin of TCC, the control bit of P5.6 (Bit 6 of IOC50) must be set to “1”

Bit 1 (EINT1): Define the function of P5.5/INT1 pin. EINT1 = “0” : for bi-directional general I/O pin.

EINT1 = “1” : for external interrupt pin of INT1, the control bit of P5.5 (Bit 5 of IOC50) must be set to “1”

Bit 0 (EINT0) : Define the function of P5.4/INT0 pin. EINT0 = “0” : for bi-directional general I/O pin.

EINT0 = “1” : for external interrupt pin of INT0, the control bit of P5.4 (Bit 4 of IOC50) must be set to “1”

6.1.16 RF/ISR (Interrupt Status Register)

(Address: 0Fh)

Bit 7

Bit 6

 

Bit 5

Bit 4

Bit 3

Bit 2

 

Bit 1

Bit 0

 

 

ICIF

LPWTF

HPWTF

CNT2F

CNT1F

INT1F

INT0F

TCIF

 

 

 

 

 

 

 

 

 

 

These bits are set to “1” when interrupt occurs respectively.

Bit 7 (ICIF): Port 6, Port 8, input status changed interrupt flag. Set when Port 6, Port 8 input changes.

Bit 6 (LPWTF): interrupt flag of the internal low-pulse width timer underflow.

Bit 5 (HPWTF): interrupt flag of the internal high-pulse width timer underflow.

Bit 4 (CNT2F): interrupt flag of the internal Counter 2 underflow.

Bit 3 (CNT1F): interrupt flag of the internal Counter 1 underflow.

Bit 2 (INT1F): external INT1 pin interrupt flag.

Bit 1 (INT0F): external INT0 pin interrupt flag.

Bit 0 (TCIF): TCC timer overflow interrupt flag. Set when TCC timer overflows.

6.1.17 Address: 10h~3Fh; R10~R3F (General Purpose Register)

R10~R31F and R20~R3F (Banks 0~3) are general purpose registers.

14

Product Specification (V1.5) 02.15.2007

(This specification is subject to change without further notice)

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IBM MiEM78P468L manual 16 RF/ISR Interrupt Status Register, Address 10h~3Fh R10~R3F General Purpose Register, Address 0Fh

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.