Iocf Interrupt Mask Register, Exie | IBM EM78P447N specs

EM78P447N

8-Bit Microcontroller with OTP ROM

Bit 0 (/WUE) Control bit is used to enable the wake-up function of P74 and P75.

0:Enable the wake-up function.

1:Disable the wake-up function.

The /WUE bit can be read and written.

Bits 1~2, and 7 Not used.

4.2.6 IOCF (Interrupt Mask Register)

7		6		5		4
-		-		-		-

3

EXIE

	2		1		0
	-		-		TCIE

Bit 3 (EXIE) EXIF interrupt enable bit.

0:disable EXIF interrupt

1:enable EXIF interrupt Bit 0 (TCIE) TCIF interrupt enable bit.

0:disable TCIF interrupt

1:enable TCIF interrupt

Bits 1, 2 and 4~7 Not used.

Individual interrupt is enabled by setting its associated control bit in the IOCF to "1".

Global interrupt is enabled by the ENI instruction and is disabled by the DISI instruction (refer to Fig. 9).

IOCF Register is Both Readable and Writable.

			/WUE0
Oscillator
Enable	Disable		/WUE1
		Reset
Q	PR D
Q	CLK		VCC
Q	CL
Clear	Set	8	/WUE7

from S/W

P60~P67

VCC

/WUE

/PHEN

2

P74~P75

Fig. 5 Sleep Mode and Wake-Up Circuits on I/O Ports Block Diagram

14 •	Product Specification (V1.1) 03.30.2005

(This specification is subject to change without further notice)

Image 18

IBM EM78P447N manual Iocf Interrupt Mask Register, Exie

Contents

EM78P447N Elan Microelectronics Corporation Contents Specification Revision History General Description EM78P447NBWM PIN Assignment Symbol Pin No Type Function EM78P447NAP and EM78P447NAM Pin DescriptionEM78P447NAS Pin Description Power supply EM78P447NBP and EM78P447NBWM Pin DescriptionEM78P447NCK and EN78P447NCM Pin Description Function Description EM78P447NDK and EM78P447NDM Pin Description 2 R1 Time Clock /Counter Operational Registers1 R0 Indirect Addressing Register 3 R2 Program Counter & Stack Call RET Retl Reti Fffh Data Memory Configuration 7 R8~R1F and R20~R3E General Purpose Register 5 R4 RAM Select Register6 R5~R7 Port 5 ~ Port7 R5, R6 and R7 are I/O registers Accumulator Special Purpose Registers8 R3F Interrupt Status Register Control Register TCC Rate 3 IOC5 ~ IOC7 I/O Port Control RegisterIocb Wake-up Control Register for Port6 WDT Rate Ioce WDT Control Register WUE Iocf Interrupt Mask Register Exie TCC and WDT Block Diagram TCC/WDT & Prescaler I/O Ports IOD Reset and Wake-up Reset Usage of Sleep1 and Sleep2 Mode SLEEP2 SLEEP1 Address Name Reset Type Bit Summary of the Initialized Values for Registers WUE7 WUE6 WUE5 WUE4 R3FISRExif Tcif Iocb Status of RST, T, and P of Status Register Previous status before resetPrevious value before reset Events that may Affect the T and P Status Controller Reset Block Diagram Interrupt Oscillator Oscillator ModesMode Conditions Crystal Oscillator/Ceramic ResonatorsXTALSummary of Maximum Operating Speeds Fxt max.MHz HXT External RC Oscillator ModeOscillator Type Frequency Mode C1pF C2pF LXT Code Option Register Code Option Register Word PR2~PR0 are protect bits, protect type as following Protect Customer ID Register Word Power On ConsiderationsExternal Power On Reset Circuit Bit 12~0 Customer’s ID code Reset Residue-Voltage Protection Instruction Set Contw NOPDAA Slep Rrca R Djza RDJZ R RRC R Timing Diagram AC Test Input/Output W aveform Ta= 25 C, VDD= 5.0V±5%, VSS= DC Electrical CharacteristicSymbol Parameter Condition Min Typ Max Unit Items Rating AC Electrical Characteristic Symbol Parameter Conditions Min Typ Max UnitTa=- -40 C ~ 85 C, VDD=5V ±5%, VSS=0V Device characteristic Vih, Vil of TCC, /INT, /RESET Pin Port5, Port6 Port7 Voh vs. Ioh,VDD=5V Port5, Port6, and Port7 Voh vs. Ioh, VDD=3V Vol/Iol VDD=5V Vol/Iol VDD=3V Vol/Iol 100 Vol/Iol WDT Cext=100pF, Typical RC OSC Frequency Typical ICC1 and ICC2 vs. Temperature Maximum ICC1 and ICC2 vs. Temperature Typical ISB1 and ISB2 vs. Temperature Maximum ISB1 and ISB2 vs. Temperature EM78P447N HXT ImA Lead plastic dual inline package（DIP）－ 300 mil Package Type Pin Count Package Size Lead plastic dual inline skinny package（DIP）－ 300 mil Lead plastic dual inline package（DIP）－ 600 mil 838 27TYP EM78P447N