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IBM EM78P312N manual Pin Description, Bit Microcontroller, Symbol, Pin No, Type, Function

Models: EM78P312N

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EM78P312N

8-Bit Microcontroller

4	Pin Description
	Table 1

	Symbol		Pin No.		Type		Function

	VDD		28		−		Power supply

	OSCI		2		I		Crystal type: Crystal input terminal
	OSCI		2		I		RC type: RC oscillator input pin
							RC type: RC oscillator input pin

							Crystal type: Output terminal for crystal oscillator
	OSCO		1		I/O		RC type: Instruction clock output
							External clock signal input

	/RESET		27		I		Input pin with Schmitt Trigger. If this pin remains at logic low, the
	/RESET		27		I		controller will also remain in reset condition.
							controller will also remain in reset condition.
							8-bit bidiectional input/output pins.
							P60 can be used as external Interrupt 0 (/INT0).
							P61 can be used as external Interrupt 1 (INT1).
	P60~P67		19~26		I/O		P62 can be used as 16-bit Timer/Counter 2 (TC2).
							P63 can be used as divider output (/TONE).
							P64 slave mode enable (/SS).
							P60 ~ P63 can be used as pull-high or pull-low pins.

							8-bit bidiectional input/output pins.
							P70 can be used as SPI serial clock input/output (/SCK)
							P71 can be used as SPI serial data input (SI) or UART data receive
	P70~P73						input (RX)
	P70~P73		15~18		I/O		P72 can be used as SPI serial data output (SO) or UART data
							transmit output (TX)
							P73 can be used as Sleep mode release input (/SLEEP) or external
							interrupt Input 5 (/INT5)
							P70 ~ P73 can be used as pull-high or pull-low pins

							2-bit bidiectional input/output pins.
							P80 can be used as 8-bit Timer/Counter 3 (TC3) or external
	P80~P81		12~13		I/O		Interrupt Input 3 (INT3).
	P80~P81		12~13		I/O		P81 can be used as 8-bit Timer/Counter 4 (TC4) or programmable

							divider output (PDO).
							P80 ~ P81 can be used as pull-high or pull-low pins.

							8-bit bidiectional input/output pins.
	P90~P97		4~11		I/O		P90~P97 can be used as 8 channel 10-bit resolution A/D converter.
							P97 can be used as AD reference power supply input (VREF).
	VSS		14		−		Ground
	NC		3		−		No connection

	OTP Programming Pins
	VPP		27		I		Programming voltage input

	ACLK		1		I		CLK for OTP memory address increment
	DATAIN		25		I/O		ROM code series input and series output pin

	DINCK		26		I		ROM code input clock

	PGMB		24		I		Program write enable pin. Active low.

	OEB		23		I		Output enable pin. Active low.


2 •							Product Specification (V1.0) 10.03.2006

(This specification is subject to change without further notice)

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IBM EM78P312N manual Pin Description, Bit Microcontroller, Symbol, Pin No, Type, Function

Contents

8-BIT Microcontroller Green Product SpecificationEM78P312N ELAN MICROELECTRONICS CORPELAN MICROELECTRONICS CORPORATION Copyright 2006 by ELAN Microelectronics CorporationAll Rights Reserved General Description ContentsFeatures Pin AssignmentSpecification Revision History APPENDIXPin Assignment 2 Features1 General Description EM78P312NEM78P312N Pin DescriptionSymbol 8-Bit MicrocontrollerFig. 5-1 Functional Block Diagram 5.1 Functional Block Diagram5 Function Description This specification is subject to change without further noticeEM78P312N 5.2 Operating RegistersThis specification is subject to change without further notice 8-Bit MicrocontrollerR1 Time Clock /Counter EM78P312N8-Bit Microcontroller R0 Indirect Addressing Register R2 Program Counter & StackUser Memory Space EM78P312N8-Bit Microcontroller R3 Status RegisterBit 0 C Carry flag R4 RAM Select Register EM78P312N8-Bit Microcontroller R5 System Control RegisterEM78P312N RB Timer/Counter 4 Control RegisterBit 7 ~ Bit 6 TC4FF1 ~ TC4FF0 Timer/Counter 4 flip-flop control 8-Bit Microcontroller R6 Port 6 I/O Data RegisterEM78P312N Bit 4 ~ Bit 2 TC4CK2 ~ TC4CK 0 Timer/Counter 4 Clock Source SelectRC Timer 4 Data Buffer 8-Bit MicrocontrollerEM78P312N 8-Bit Microcontroller RE Interrupt Status Flag RegisterRFInterrupt Status Flag Register TC3M = “1” Capture mode Bank 1 R6 TC3DA Timer 3 Data Buffer A Bank 1 R5 TC3CR Timer/Counter 3 Control RegisterBit 5 ~ Bit 4 TC3CK1 ~ TC3CK0 Timer/Counter 3 Clock Source Select Bank 1 R7 TC3DB Timer 3 Data Buffer BBank 1 RA TC2DL Timer 2 Data Buffer Low Byte Bit 2 ~ Bit 0 TC2CK2 ~ TC2CK0 Timer/Counter 2 Clock Source SelectBank 1 R9 TC2DH Timer 2 Data Buffer High Byte TC2M Timer/Counter 2 mode selectEM78P312N ADP = “0” Power on ADP = “1” Power downBit 7 ~ Bit 0 ADE7 ~ ADE0 AD input pin enable control 8-Bit MicrocontrollerBit 2 ~ Bit 0 TBTCK2 ~ TBTCK0 Time Base Timer Clock Source Select TEN = “0” Disable TEN = “1” EnableTBTEN = “0” Disable TBTEN = “1” Enable EM78P312N8-Bit Microcontroller TXE = “0” Disable TXE = “1” EnableEM78P312N Bit 4 ~ Bit 2 BRATE2 ~ BRATE1 Transmit Baud Rate SelectEM78P312N PRE = “0” Disable PRE = “1” Enable Bit 4 PRERR Parity error flagBit 0 RXE Enable receiving RXE = “0” Disable RXE = “1” Enable 8-Bit MicrocontrollerBit 5 ~ Bit 3 BRS0 ~ BRS2 SPI Clock Source Select EM78P312N8-Bit Microcontroller EDS = “0” Rising edge EDS = “1” Falling edgeBit 2 ~ Bit 1 SPIM1 ~ SPIM0 SPI Transfer Mode Select EM78P312N8-Bit Microcontroller BankPHE7x = “1” Disable P7x pull high 5.3 Special Purpose RegistersPHE7x = “0” Enable P7x pull high WDTE = “0” Disable WDTE = “1” Enable8-Bit Microcontroller Bit 2 PSR2 ~ Bit 0 PSR0 TCC prescaler bits Bit 6 INT0EN INT0 enable control INT0EN = “0” General I/OEM78P312N IOC6 ~ IOC9 − I/O Port Control RegisterADOSCR − AD Offset Control Register Address 0Ch EM78P312N8-Bit Microcontroller Bit 5 ~ Bit 3 VOF2 ~ VOF0 Offset voltage bits8-Bit Microcontroller Bit 1 SPIE SPI Interrupt enable bitEM78P312N IMR2 − Interrupt Mask Register 2 Address 0Fh5.4 CPU Operation Mode EM78P312N8-Bit Microcontroller 8-Bit Microcontroller 5.5 AD ConverterEM78P312N Table 4. Wake-up MethodsADC Data Register EM78P312N8-Bit Microcontroller A/D Sampling TimeFig. 5-7 Tone Output Pin Timing Chart 5.6 Time Base Timer and Keytone GeneratorFig. 5-6 Tone Output Pin Configuration EM78P312NEM78P312N Fig. 5-8 TBT ConfigurationFig. 5-9 Time Base Timer Timing Chart 8-Bit MicrocontrollerEM78P312N 5.7 UART Universal Asynchronous Receiver/TransmitterFig. 5-10 Function Block Diagram 8-Bit MicrocontrollerEM78P312N 5.7.1 UART Mode5.7.2 Transmitting 8-Bit MicrocontrollerEM78P312N 5.7.3 Receiving5.7.4 Baud Rate Generator 8-Bit MicrocontrollerThis specification is subject to change without further notice 5.8 SPI Serial Peripheral InterfaceFig. 5-13 SPI Block Diagram EM78P312N5.8.3 Transfer Mode 5.8.2 Shift Direction and Sample Phase5.8.1 Serial Clock EM78P312NEM78P312N 8-Bit Microcontroller b 8-bit Receive Modec 8-bit Transmit/Receive Mode d Multiple Device Connect /SS EM78P312N8-Bit Microcontroller SCK pinFig. 5-18 Configuration of Timer/Counter 5.9 Timer/CounterRegisters for Timer/Counter 2 Circuit EM78P312N5.9.3 Window Mode 5.9.1 Timer Mode5.9.2 Counter Mode EM78P312NFig. 5-21 Window Mode Timing Chart 5.10 Timer/CounterRegisters for Timer/Counter 3 Circuit EM78P312N5.10.3 Capture Mode 5.10.1 Timer Mode5.10.2 Counter Mode EM78P312N5.11 Timer/Counter EM78P312N8-Bit Microcontroller 5.11.3 PDO Mode 5.11.1 Timer Mode5.11.2 Counter Mode EM78P312NEM78P312N 5.12 TCC/WDT & Prescaler5.11.4 PWM Mode 8-Bit Microcontroller5.13 I/O Ports 5.14 Reset and Wake-up5.14.1 Reset EM78P312NEM78P312N 5.14.2 Wake-up from Sleep Mode5.14.3 Wake-up from Idle Mode 8-Bit MicrocontrollerEM78P312N Reset TypeThis specification is subject to change without further notice 8-Bit MicrocontrollerEM78P312N Reset TypeThis specification is subject to change without further notice 8-Bit Microcontroller Register BankEM78P312N Reset TypeThis specification is subject to change without further notice 8-Bit Microcontroller Register BankThis specification is subject to change without further notice Reset TypeReset Type EM78P312N5.14.4 The Status of RST, T, and P of the Status Register EM78P312N8-Bit Microcontroller General Purpose Registers 5.15 Interrupt EM78P312N8-Bit Microcontroller 5.16.2 Crystal Oscillator/Ceramic Resonators Crystal 5.16 Oscillator5.16.1 Oscillator Modes EM78P312NOSCI EM78P312N8-Bit Microcontroller XTAL8-Bit Microcontroller 5.16.3 External RC Oscillator ModeEM78P312N Crystal/Resonator-Parallel Mode CircuitENWDTB = “0” Enable ENWDTB = “1” Disable 5.17 Code Option Register5.17.1 Code Option Register Word EM78P312N5.17.2 Customer ID Register 5.18 Power-on Considerations5.18.1 External Power-on Reset Circuit HLP = “0” Low power HLP = “1” High powerEM78P312N 5.18.2 Residue-Voltage ProtectionRESET 8-Bit Microcontroller5.19 Instruction Set EM78P312N8-Bit Microcontroller EM78P312N 8-Bit Microcontroller6.2 Recommended Operating Conditions 6 Absolute Maximum Ratings6.1 Absolute Maximum Ratings EM78P312NEM78P312N 7 Electrical Characteristics7.1 DC Electrical Characteristics 8-Bit MicrocontrollerEM78P312N 8-Bit MicrocontrollerTa= 25 C, VDD= 3.0V ± 5%, VSS= EM78P312N 8-Bit Microcontroller8-Bit Microcontroller 7.2 AC Electrical CharacteristicEM78P312N Ta=- 40C ~ 85 C, VDD=5V ± 5%, VSS=0VThis specification is subject to change without further notice 7.3 Timing DiagramRESET Timing CLK=0 EM78P312N8-Bit Microcontroller APPENDIX A Package TypesEM78P312N OTP MCU