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IBM EM78P447N Program Counter Organization, PAGE0 0000~03FF, PAGE1 0400~07FF, PAGE2 0800~0BFF

Models: EM78P447N

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EM78P447N

8-Bit Microcontroller with OTP ROM

All instruction are single instruction cycle (fclk/2 or fclk/4) except for the instruction that would change the contents of R2. Such instruction will need one more instruction cycle.

R3
A11 A10 A9 A8	A7	~	A0
	CALL
	RET
	RETL
	RETI
00 PAGE0 0000~03FF		Stack Level 1
01 PAGE1 0400~07FF		Stack Level 2
10 PAGE2 0800~0BFF		Stack Level 3
11 PAGE3 0C00~0FFF		Stack Level 4
		Stack Level 5

Hardware Vector

Software Vector

On-chip Program

Memory

Reset Vector

000H

001H

002H

User Memory

Space

FFFH

Fig. 3 Program Counter Organization

8 •	Product Specification (V1.1) 03.30.2005

(This specification is subject to change without further notice)

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IBM EM78P447N manual Program Counter Organization, PAGE0 0000~03FF, PAGE1 0400~07FF, PAGE2 0800~0BFF, PAGE3 0C00~0FFF

Contents

Product Specification EM78P447N8-Bit Microcontroller with OTP ROM ELAN MICROELECTRONICS CORPTrademark Acknowledgments Copyright 2005 by ELAN Microelectronics CorporationAll Rights Reserved ELAN MICROELECTRONICS CORPORATIONContents FEATURESSpecification Revision History DC ELECTRICAL CHARACTERISTICSDC Electrical Characteristic AC Electrical Characteristic2 FEATURES 1 GENERAL DESCRIPTIONEM78P447N Programmable free running watchdog timer EM78P447N3 PIN ASSIGNMENT This specification is subject to change without further noticeEM78P447N Fig. 1 Pin AssignmentEM78P447N Table 1 EM78P447NAP and EM78P447NAM Pin DescriptionTable 2 EM78P447NAS Pin Description EM78P447N Table 3 EM78P447NBP and EM78P447NBWM Pin DescriptionTable 4 EM78P447NCK and EN78P447NCM Pin Description 4 FUNCTION DESCRIPTION Fig. 2 Functional Block DiagramEM78P447N Table 5 EM78P447NDK and EM78P447NDM Pin Description4.1 Operational Registers 4.1.1 R0 Indirect Addressing Register4.1.2 R1 Time Clock /Counter 4.1.3 R2 Program Counter & StackReset Vector EM78P447NFig. 3 Program Counter Organization 00 PAGE0 0000~03FFFig. 4 Data Memory Configuration EM78P447N4.1.5 R4 RAM Select Register 4.1.6 R5~R7 Port 5 ~ Port74.1.7 R8~R1F and R20~R3E General Purpose Register EM78P447N4.2 Special Purpose Registers 4.1.8 R3F Interrupt Status Register4.2.1 A Accumulator 4.2.2 CONT Control Register4.2.3 IOC5 ~ IOC7 I/O Port Control Register 4.2.4 IOCB Wake-up Control Register for Port6EM78P447N 4.2.5 IOCE WDT Control Register EM78P447N4.2.6 IOCF Interrupt Mask Register Fig. 5 Sleep Mode and Wake-Up Circuits on I/O Ports Block DiagramEM78P447N 4.3 TCC/WDT & Prescaler Fig. 6 TCC and WDT Block DiagramEM78P447N 4.4 I/O Ports EM78P447NFig. 7 a The I/O Port and I/O Control Register Circuit Fig.7 b The I/O Port with R-Option P70, P71 Circuit4.5 RESET and Wake-up 4.5.1 RESETEM78P447N EM78P447N Table 6 Usage of Sleep1 and Sleep2 ModeEM78P447N Table 7 The Summary of the Initialized Values for RegistersEM78P447N 0x09~0x3E4.5.2 The Status of RST, T, and P of STATUS Register EM78P447N4.6 Interrupt Fig. 8 Controller Reset Block DiagramEM78P447N 4.7 Oscillator 4.7.1 Oscillator ModesEM78P447N Fig. 9 Interrupt Input Circuit4.7.2 Crystal Oscillator/Ceramic ResonatorsXTAL EM78P447NFig. 10 Crystal/Resonator Circuit Fig. 11 Crystal/Resonator Circuit4.7.3 External RC Oscillator Mode EM78P447NFig. 12 External RC Oscillator Mode Circuit 4.8 CODE Option Register 4.8.1 Code Option Register WordEM78P447N EM78P447N Bit 8 CLKS Instruction period option bit 0 two oscillator periods4.9 Power On Considerations 4.10 External Power On Reset CircuitRESET 4.8.2 Customer ID Register Word4.11 Residue-Voltage Protection Vdd EM78P447N RESETVdd EM78P447N RESET EM78P447N4.12 Instruction Set EM78P447NEM78P447N INSTRUCTIONMNEMONIC OPERATIONEM78P447N This instruction is applicable to IOC5 ~ IOC7, IOCB, IOCE, IOCF onlyThis instruction is not recommended for R3F operation This instruction cannot operate under R3F4.13 Timing Diagram This specification is subject to change without further noticeEM78P447N TEST POINTSDC ELECTRICAL CHARACTERISTICS DC Electrical Characteristic5 ABSOLUTE MAXIMUM RATINGS EM78P447NAC Electrical Characteristic EM78P447N 8-Bit Microcontroller with OTP ROM6.3 Device characteristic EM78P447NThis specification is subject to change without further notice EM78P447NFig.18 Port5, Port6 and Port7 Voh vs. Ioh,VDD=5VThis specification is subject to change without further notice EM78P447NVoh/Ioh VDD=3V IohmAThis specification is subject to change without further notice EM78P447NVol/Iol VDD=5V IolmAThis specification is subject to change without further notice EM78P447NVol/Iol VDD=3V IolmAThis specification is subject to change without further notice EM78P447NVol/Iol IolmAThis specification is subject to change without further notice EM78P447NVol/Iol IolmAWDT Timeout This specification is subject to change without further noticeEM78P447N periodEM78P447N R=3.3kR=5.1k R=10kICC1：VDD=3V, Fosc=32 kHz, 2clock, WDT disable EM78P447NFig. 28 Maximum Operating Current（ICC1 and ICC2） vs. Temperature Fig. 29 Typical Operating Current（ICC3 and ICC4） vs. TemperatureEM78P447N Max ICC2Maximum ICC3 and ICC4 vs. Temperature TemperatureFig. 30 Maximum Operating Current（ICC3 and ICC4） vs. Temperature Fig. 31 Typical Standby Current（ISB1 and ISB2） vs. TemperatureFig. 32 Maximum Standby Current（ISB1 and ISB2） vs. Temperature Fig. 33 Operating Voltage In Temperature Range from -40 toEM78P447N Max ISB2This specification is subject to change without further notice EM78P447NFig. 34 EM78P447N I-V Curve Operating at 4 MHz Fig. 35 EM78P447N I-V Curve Operating at 32.768 kHzAPPENDIX A Package Types B Package InformationEM78P447N 20-Lead plastic dual inline package（DIP）－ 300 milThis specification is subject to change without further notice EM78P447N24-Lead plastic dual inline skinny package（DIP）－ 300 mil 28-Lead plastic dual inline package（DIP）－ 600 milThis specification is subject to change without further notice EM78P447N32-Lead plastic dual inline package（DIP）－ 600 mil 20-Lead plastic small outline package（SOP）－ 300 milThis specification is subject to change without further notice EM78P447N24-Lead plastic small outline package（SOP）－ 300 mil 28-Lead plastic small outline package（SOP）－ 300 milThis specification is subject to change without further notice EM78P447N32-Lead plastic small outline package（SOP）－ 300 mil 28-Lead Shrink Small Outline Package（SSOP）－ 209 mil

00 PAGE0 0000~03FF

01 PAGE1 0400~07FF

10 PAGE2 0800~0BFF

11 PAGE3 0C00~0FFF

Hardware Vector

Reset Vector

Fig. 3 Program Counter Organization