15 RE/IRCR IR and Port 5 Setting Control Register

EM78P468N/EM78P468L

8-Bit Microcontroller

CPU Operation Mode

		Code option
		HLFS=1	RESET
			RESET

	Normal Mode		Code option
	fm:oscillation		Code option
	fm:oscillation		HLFS=0
	fs:oscillation
it must delay a little times for the main	CPU: using fosc
oscillation stable w hile your system timing
control is conscientious

CPUS="0"

CPUS="1"

SLEEP Mode	IDLE="0"	Green Mode
SLEEP Mode	SLEP	Green Mode
	SLEP
Fm:stop		fm:stop
Fs: stop		fs:oscillation
CPU: stop	Wake up	CPU: usingfs

The w ake up time from sleep to green mode is approximately sub-oscillator setup time +18ms+16*1/fs

	IDLE="1"		IDLE Mode
	SLEP		IDLE Mode
	SLEP
			fm:stop
			fs:oscillation
	w akeup		CPU: stop

The w ake up time from idle to green mode is 16*1/fs

Fig. 6-3 CPU Operation Mode

6.1.15 RE/IRCR (IR and Port 5 Setting Control Register)

(Address: 0Eh)

Bit 7	Bit 6	Bit 5	Bit	4	Bit 3	Bit 2	Bit 1	Bit 0

IRE	HF	LGP	−		IROUTE	TCCE	EINT1	EINT0

Bit 7 (IRE): Infrared Remote Enable bit

IRE = “0” : Disable the IR/PWM function. The state of P5.7/IROUT pin is determined by Bit 7 of IOC 50 if it is for IROUT.

IRE = “1” : Enable IR or PWM function.

Bit 6 (HF): High carry frequency

HF = “0” : For PWM application, disable the H/W modulator function. The IROUT waveform is generated according to high-pulse and low-pulse time as determined by the respective high pulse and low pulse width timers. Counter 2 is an independent auto reload timer.

HF = “1” : For IR application mode, enable the H/W modulator function, the low time sections of the generated pulse is modulated with the Fcarrier frequency. The Fcarrier frequency is provided by Counter 2.

Bit 5 (LGP): IROUT for of low pulse width timer

LGP = “0” : The high-pulse width timer register and low-pulse width timer is valid.

LGP = “1” : The high-pulse width timer register is ignored. So the IROUT waveform is dependent on the low-pulse width timer register only.

Product Specification (V1.5) 02.15.2007

• 13

(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 15 RE/IRCR IR and Port 5 Setting Control Register, Address 0Eh

Models: MiEM78P468L MiEM78P468N