14 IOC71/TCCCR TCC Control Register, TCC Rate

EM78P468N/EM78P468L

8-Bit Microcontroller

Bit 2 (/WUE8L): 0/1 → enable/disable P8.0~P8.3 pin change wake-up function

Bit 1 (/WUE6H): 0/1 → enable/disable P6.4~P6.7 pin change wake-up function

Bit 0 (/WUE6L): 0/1 → enable/disable P6.0~P6.3 pin change wake-up function

*Port 6 and Port 8 must not be set as input floating when wake-up function is enabled. “Enable” is the initial state of wake-up function.

6.2.14 IOC71/TCCCR (TCC Control Register)

(Address: 07h, Bit 0 of R5 = “1”)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

INT_EDGE

INT

PSRE

TCCP2

TCCP1

TCCP0

Bit 7 (INT_EDGE):

INT_EDGE = “0”: Interrupt on the rising edge of P5.4/INT0 pin

INT_EDGE = “1”: Interrupt on the falling edge of P5.4/INT0 pin Bit 6 (INT): INT enable flag, this bit is read only

INT = “0”: interrupt masked by DISI or hardware interrupt

INT = “1”: interrupt enabled by ENI/RETI instructions

Bit 5 (TS): TCC signal source

TS = “0”: internal instruction cycle clock

TS = “1”: transition on TCC pin, TCC period > internal instruction clock period Bit 4 (TE): TCC signal edge

TE = “0”: incremented by TCC pin rising edge

TE = “1”: incremented by TCC pin falling edge

Bits 3~0 (PSRE, TCCP2 ~ TCCP0): TCC prescaler bits.

PSRE TCCP2 TCCP1

TCCP0

TCC Rate

0	⋅	⋅

1	0	0

1	0	0

1	0	1

1	0	1

1	1	0

1	1	0

1	1	1

1	1	1

⋅

1:1

1:2

1:4

1:8

1:16

1:32

1:64

1:128

1:256

Product Specification (V1.5) 02.15.2007

• 19

(This specification is subject to change without further notice)

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.

IBM MiEM78P468N, MiEM78P468L manual 14 IOC71/TCCCR TCC Control Register, Bit 7 Intedge, TCC Rate

Models: MiEM78P468L MiEM78P468N

8-Bit Microcontroller

6.2.14 IOC71/TCCCR (TCC Control Register)

Bit 7 (INT_EDGE):

Bits 3~0 (PSRE, TCCP2 ~ TCCP0): TCC prescaler bits.

PSRE TCCP2 TCCP1

TCCP0

TCC Rate

MiEM78P468L, MiEM78P468N specifications