EM78P468N/EM78P468L

8-Bit Microcontroller

 

Address

 

Name

 

Reset Type

 

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

R57

R56

R55

R54

X

X

X

IOCPAGE

 

 

0x05

 

R5

 

Power-on

 

1

1

1

1

U

U

U

0

 

 

 

 

/RESET & WDT

 

1

1

1

1

U

U

U

0

 

 

 

(Port 5)

 

 

 

 

 

 

 

Wake-up from

 

P

P

P

P

U

U

U

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

R67

R66

R65

R64

R63

R62

R61

R60

 

 

0x06

 

R6

 

Power-on

 

1

1

1

1

1

1

1

1

 

 

 

 

/RESET & WDT

 

1

1

1

1

1

1

1

1

 

 

 

(Port 6)

 

 

 

 

 

 

 

Wake-up from

 

P

P

P

P

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

R77

R76

R75

R74

R73

R62

R71

R70

 

 

0x7

 

R7

 

Power-on

 

1

1

1

1

1

1

1

1

 

 

 

 

/RESET & WDT

 

1

1

1

1

1

1

1

1

 

 

 

(Port 7)

 

 

 

 

 

 

 

Wake-up from

 

P

P

P

P

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

R87

R86

R85

R84

R83

R82

R81

R80

 

 

0x8

 

R8

 

Power-on

 

1

1

1

1

1

1

1

1

 

 

 

 

/RESET & WDT

 

1

1

1

1

1

1

1

1

 

 

 

(Port 8)

 

 

 

 

 

 

 

Wake-up from

 

P

P

P

P

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

BS

DS1

DS0

LCDEN

X

LCDTYPE

LCDF1

LCDF0

 

 

0x9

 

R9

 

Power-on

 

1

1

0

0

U

0

0

0

 

 

 

 

/RESET & WDT

 

1

1

0

0

U

0

0

0

 

 

 

(LCDCR)

 

 

 

 

 

 

 

Wake-up from

 

P

P

P

P

U

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

X

X

X

LCD_A4

LCD_A3

LCD_A2

LCD_A1

LCD_A0

 

 

0xA

 

RA

 

Power-on

 

0

0

0

0

0

0

0

0

 

 

 

 

/RESET & WDT

 

0

0

0

0

0

0

0

0

 

 

 

(LCD_ADDR)

 

 

 

 

 

 

 

Wake-up from

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

P

P

P

P

P

P

P

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

X

X

X

X

LCD_D 3

LCD_D 2

LCD_D 1

LCD_D 0

 

 

0xB

 

RB

 

Power-on

 

U

U

U

U

U

U

U

U

 

 

 

 

/RESET & WDT

 

U

U

U

U

P

P

P

P

 

 

 

(LCD_DB)

 

 

 

 

 

 

 

Wake-up from

 

U

U

U

U

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

X

X

X

X

LPWTEN

HPWTEN

CNT2EN

CNT1EN

 

 

0xC

 

RC

 

Power-on

 

0

1

0

0

0

0

0

0

 

 

 

 

/RESET & WDT

 

0

1

0

0

0

0

0

0

 

 

 

(CNTER)

 

 

 

 

 

 

 

Wake-up from

 

P

P

0

P

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

X

CLK2

CLK1

CLK0

IDLE

BF1

BF0

CPUS

 

 

0xD

 

RD

 

Power-on

 

U

0

0

0

1

0

0

*1

 

 

 

 

/RESET & WDT

 

U

0

0

0

1

0

0

*1

 

 

 

(SBPCR)

 

 

 

 

 

 

 

Wake-up from

 

U

P

P

P

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

IRE

HF

LGP

X

IROUTE

TCCE

EINT1

EINT0

 

 

0xE

 

RE

 

Power-on

 

0

0

0

U

0

0

0

0

 

 

 

 

/RESET & WDT

 

0

0

0

U

0

0

0

0

 

 

 

(IRCR)

 

 

 

 

 

 

 

Wake-up from

 

P

P

P

U

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit Name

 

ICIF

LPWTF

HPWTF

CNT2F

CNT1F

INT1F

INT0F

TCIF

 

 

0xF

 

RF

 

Power-on

 

0

0

0

0

0

0

0

0

 

 

 

 

/RESET & WDT

 

0

0

0

0

0

0

0

0

 

 

 

(ISR)

 

 

 

 

 

 

 

Wake-up from

 

N

P

P

P

P

P

P

P

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0x10

 

 

 

Bit Name

 

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

 

 

 

R10~R3F

 

Power-on

 

U

U

U

U

U

U

U

U

 

 

~

 

 

/RESET & WDT

 

P

P

P

P

P

P

P

P

 

 

0x3F

 

 

 

Wake-up from

 

P

P

P

P

P

P

P

P

 

 

 

 

 

 

Pin Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: This bit is equal to the Code Option HLFS bit data

 

 

 

 

 

 

 

 

Legend: “⋅” = not used

 

 

 

“P” = previous value before reset

 

 

 

 

 

 

 

“−” = Not defined

 

“t” = check R3 register explanation

 

 

 

 

 

 

 

“u” = unknown or don’t care

 

“N” = Monitors interrupt operation status

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28 •

 

 

 

 

 

 

 

 

Product Specification (V1.5) 02.15.2007

(This specification is subject to change without further notice)

Page 33 Page 35
Page 34
Image 34
IBM MiEM78P468L, MiEM78P468N manual Name Reset Type Bit
Page 33 Page 35

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.
Top Page Image Contents