ELAN Home Systems EM78P459AK, EM78P459AM, EM78P458AM manual Values of RST, T, and P after Reset

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EM78P458/459

OTP ROM

Table 5 The Values of RST, T, and P after RESET

Reset Type	T	P

Power-on	1	1
/RESET during Operating mode	*P	*P
/RESET wake-up during SLEEP mode	1	0
WDT during Operating mode	0	*P
WDT wake-up during SLEEP mode	0	0
Wake-up on pin change during SLEEP mode	1	0

*P: Previous status before reset

Table 6 The Status of RST, T and P being Affected by Events

Event	T	P

Power-on	1	1
WDTC instruction	1	1
WDT time-out	0	*P
SLEP instruction	1	0
Wake-up on pin changed during SLEEP mode	1	0

*P: Previous value before reset

VDD
D	Q
Oscillator	CLK
	CLK
	CLR
Power-On Reset

CLK

Voltage Detector

WDT Timeout

WDT

Setup time

Reset

/RESET

Fig. 10 Block Diagram of Reset of Controller

This specification is subject to change without prior notice.

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07.01.2003 (V1.3)

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Contents BIT MICRO-CONTROLLER EM78P458/459Application Note EM78P458/459General Description Features EM78P458/459 PIN Assignment EM78P459 Pin Description Operational Registers Function DescriptionR0 Indirect Addressing Register R1 Time Clock /CounterProgram Counter Organization R4 RAM Select Register R3 Status RegisterR5 ~ R6 Port 5 ~ Port R7 ~ R8Data Memory Configuration RA Addata the converted value of ADC R9 Adcon Analog to Digital Control10. RB 11. RC13. RE Special Purpose RegistersRF Interrupt Status Register 15. R10 ~ R3FIOC50 ~ IOC60 I/O Port Control Register Control RegisterInte INT PAB PSR2 PSR1 PSR0 Bit 0 PSR0 ~ Bit 2 PSR2 TCC/WDT prescaler bitsVrefs COE IMS2 IMS1 IMS0 CKR1 CKR0 IOC90 Gcon I/O Configuration & Control of ADCOP2E OP1E IOCB0 Pull-down Control Register Description of AD Configuration Control BitsBit4Bit2 IMS2IMS0 IMS2IMS0IOCD0 Pull-high Control Register IOCC0 Open-Drain Control RegisterIOCF0 Interrupt Mask Register IOCE0 WDT Control RegisterWdte EIS Cmpie PWM2IE PWM1IE Adie Exie Icie TciePWM2E PWM1E T2EN T1EN IOC51 PwmconCALI1 SIGN1 IOC81 PRD1 Period of PWM1Bit 5Bit 3 VOF12VOF10 Offset voltage bits CALI2 SIGN2Bit 5Bit 3 VOF22VOF20 Offset voltage bits IOCB1 PRD2 Period of PWM2TCC/WDT & Prescaler I/O Ports Block Diagram of TCC and WDTCcircuit of I/O Port and I/O Control Register for Port Circuit of I/O Port and I/O Control Register for P60~P67 Usage of Port 6 Input Changed Wake-up/Interrupt Function Reset and Wake-up Function of Reset and Wake-up Contw CLR R1 Status of T, and P of Status Register Status of RST, T and P being Affected by Events Values of RST, T, and P after ResetInterrupt Interrupt Input Circuit Analog-To-Digital Converter ADCBIT Symbol Vrefs COE IMS2 IMS1 IMS0 CKR1 CKR0 BIT Symbol Iocs Adrun Adpd ADIS2 ADIS1 ADIS0ADC Control Register ADCON/R9, AD-CMP-CON/IOCA0, GCON/IOC90 ADCON/R9CKR1 and CKR0 Bit 1 and Bit 0 The conversion time select ADC Data Register ADDATA/RAGCON/IOC90 Shows the Gains and the Operating Range of ADCD Sampling Time D Operation During Sleep ModeD Conversion Time Programming Steps/ConsiderationsCINT== 0XF Demonstration ProgramsIocs Adrun Adpd ADIS2 ADIS1 ADIS0 Overview Dual Sets of PWM Pulse Width ModulationFunctional Block Diagram of the Dual PWMs Increment Timer Counter Tmrx TMR1H/TWR1L or TMR2H/TWR2LPWM Period Prdx PRD1 or PRD2 PWM Programming Procedures/StepsComparator Period = Prdx + 1 * 4 * 1/Fosc * Tmrx prescale valueFunction description TimerTMR1X and TMR2X TMR1H/TWR1L and TMR2H/TMR2L Prdx PRD1 and PRD2 PWM period registerExternal Reference Signal Timer programming procedures/stepsComparator Programming the Related RegistersInterrupt Using as An Operation AmplifierWake-up from Sleep Mode Summary of the Initialized Values for Registers Initialized Values after ResetCALI1 SIGN1 Oscillator Modes OscillatorSummary of Maximum Operating Speeds Crystal Oscillator/Ceramic Resonators XtalEM78P458 EM78P459LXT HXTEM78P458 EM78P459 VddExternal RC Oscillator Mode EM78P458 EM78P459 Vcc Rext RC Oscillator Mode with Internal CapacitorExternal Power on Reset Circuit Power-on ConsiderationsResidue-Voltage Protection EM78P458 EM78P459 RinEnwdt Clks PTB HLF RCT HLP Code Option Register WordBit 11 ~ Bit 9 VOF22~VOF20 Offset voltage bits Bit 5 ~ Bit 0 ID5~ID0 Customer’s IDList of the instruction set of EM78P458/459 Instruction SetADD A,R Reset Timing CLK=0 Timing DiagramsAC Test Input/Output Waveform TCC Input Timing CLKS=0Absolute Maximum Ratings Crystal type, two clocks Electrical CharacteristicsAC Electrical CharacteristicTa=0C ~ 70 C, VDD=5V±5%, VSS=0V ComparatorOP CharacteristicVdd = 5.0V,Vss=0V,Ta=0 toIVR Package Types AppendixOTP MCU DIP