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IBM MiEM78P468N, MiEM78P468L manual 4 RD/SBPCR System, Booster and PLL Control Registers

Models: MiEM78P468L MiEM78P468N

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EM78P468N/EM78P468L

8-Bit Microcontroller

6.9.4 RD/SBPCR (System, Booster and PLL Control Registers)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

−

CLK2

CLK1

CLK0

IDLE

BF1

BF0

CPUS

Bit 2 ~ 1 (BF1 ~ 0): LCD booster frequency select bits

BF1	BF0		Booster Frequency
0	0		Fs
0	1		Fs/4

1	0		Fs/8

1	1		Fs/16

The initial setting flowchart for LCD function

IC RESET occur

*Set Port 7 snd Port 8 for general I/O or LCD segment (IOC50)

*it must be set to output port w hen the pin of port 7 and the pin of port 8 for LCD segemnt (IOC70 and IOC80)

Set LCD Type, duty, bias, LCD frame frequency (R9)

Set LCD Booster Frequency (RD)

Clear all LCD RAM (RA and RB)

Enable LCD function (R9)

Use LCD address and LCD data buffer to implment user's applications. (RA and RB)

END

Fig.6-14 The Initial Setting Flowchart for LCD Function

Product Specification (V1.5) 02.15.2007

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(This specification is subject to change without further notice)

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IBM MiEM78P468N 4 RD/SBPCR System, Booster and PLL Control Registers, Bit 2 ~ 1 BF1 ~ 0 LCD booster frequency select bits

Contents

EM78P468N/L Elan Microelectronics Corporation Contents Infrared Remote Control Application/PWM Waveform Generate Doc. Version Revision Description Date AppendixContents Product Specification V1.5 General Description FeaturesBit Microcontroller Pin QFP Pin Lqfp Pin AssignmentSystem Block Diagram Block DiagramPin Description Symbol Pin No Type FunctionPin Description for Package of QFP64 and LQFP64 SEG11~SEG14 Pin Description for Package of QFP44 and LQFP441 R0/IAR Indirect Addressing Register 2 R1/TCC Timer Clock CounterFunction Description Operational RegistersOn-ChipProgrammemory Bit 0 C Carry flag 4 R3/SR Status RegisterBits 6 ~ 5 PS1 ~ 0 Page select bits Bit 2 Z Zero flag8 R7/Port 7 Port 7 I/O Data Register 5 R4/RSR RAM Select Register6 R5/Port 5 Port 5 I/O Data and Page of Register Select 7 R6/Port 6 Port 6 I/O Data RegisterLcdtype = 0 a type waveform Lcdtype = 1 B type waveform Bit 4 Lcden LCD enable bit9 R8/Port 8 Port 8 I/O Data Register 10 R9/LCDCR LCD Control Register11 RA/LCDADDR LCD Address RC/CNTER Counter Enable RegisterRB/LCDDB LCD Data Buffer Example Fs=32.768K 14 RD/SBPCR System, Booster and PLL Control RegisterAddress 0Dh Main clockBit Microcontroller CPU Operation Mode 15 RE/IRCR IR and Port 5 Setting Control RegisterAddress 0Eh Address 10h~3Fh R10~R3F General Purpose Register 16 RF/ISR Interrupt Status RegisterAddress 0Fh Accumulator Special Purpose RegistersAddress 05h, Bit 0 of R5 = 6 IOC90/RAMADDR 128 Bytes RAM Address 3 IOC60/P6CR Port 6 I/O Control Register4 IOC70/P7CR Port 7 I/O Control Register 5 IOC80/P8CR Port 8 I/O Control RegisterIOCC0/CNT2PR Counter 2 Preset Register IOCB0/CNT1PR Counter 1 Preset RegisterIOCD0/HPWTPR High-Pulse Width Timer Preset Register IOCF0/IMR Interrupt Mask Register IOCE0/LPWTPR Low-Pulse Width Timer Preset RegisterBits 6, 5, 4 Not used TCC Rate 14 IOC71/TCCCR TCC Control RegisterBit 7 Intedge Bits 3~0 PSRE, TCCP2 ~ TCCP0 TCC prescaler bitsWDT Rate 15 IOC81/WDTCR WDT Control Register16 IOC91/CNT12CR Counters 1, 2 Control Register Bits 7 ~ 4 Not usedCounter 1 Scale IOCA1/HLPWTCR High/Low Pulse Width Timer Control RegisterLow-pulse Width Timer Scale High-pulse Width Timer ScaleIOCE1/P6PL Port 6 Pull Low Control Register IOCB1/P6PH Port 6 Pull-high Control RegisterIOCC1/P6OD Port 6 Open Drain Control Register IOCD1/P8PH Port 8 Pull High Control RegisterMUX TCC and WDT PrescalerTCC Setting Flowchart Bit Microcontroller WDT Setting FlowchartI/O Ports Reset and Wake-upBit Microcontroller Summary of Registers Initialized Values Address Name Reset Type BitINT Psre TCCP2 TCCP1 TCCP0 Name Reset Type Bit Wake-up Signal Sleep Mode Idle Mode Green Mode Normal Mode Oscillator Phase Lock Loop PLL ModeOscillator Modes Main clock Example Fs=32.768KHz Crystal Oscillator/Ceramic Resonators CrystalOscillator Source Oscillator Type Frequency C1 pF C2 pF Pin Rext Average Fosc 5V, 25 C Average Fosc 3V, 25 C Power-on ConsiderationsRC Oscillator Mode with Internal Capacitor RC Oscillator FrequenciesResidue-Voltage Protection External Power-on Reset Circuit13 Interrupt Back-up Interrupt1 R9/LCDCR LCD Control Register LCD DriverBits 6 ~ 5 DS1 ~ DS0 LCD duty select Bits 4 ~ 0 LCDA4 ~ LCDA0 LCD RAM address 2 RA/LCDADDR LCD Address3 RB/LCDDB LCD Data Buffer Bits 7 ~ 5 Not used, fixed toBit 2 ~ 1 BF1 ~ 0 LCD booster frequency select bits 4 RD/SBPCR System, Booster and PLL Control RegistersExternal circuit for 1/3 Bias Boosting circuits connection for LCD voltageExternal circuit for 1/2 Bias 16 LCD Waveform for 1/2 Bias, 1/2 Duty 18 LCD Waveform for 1/3 Bias, 1/3 Duty ⋅ 1 + decimal C ounter Preset Value Iocc 0 ⋅ prescaler Infrared Remote Control Application/PWM Waveform Generate21 LGP=0, Irout Pin Output Waveform 23 LGP=0, Irout Pin Output Waveform IR application Bit Microcontroller IR/PWM Function Enable FlowchartBits12~10 Word Code OptionsBits 12 ~ 10 Not used WordBits 2~0 PR2~PR0 Protect Bit Instruction SetPR1PR0Protect Convention Binary Instruction Hex Mnemonic Operation StatusJZA Binary Instruction Hex Mnemonic Operation Status AffectedAC Test Input/Output Waveform Timing DiagramAbsolute Maximum Ratings Items Symbol Condition Rating Min Max UnitTa= -40 C ~85 C, VDD= 5.0V, GND= Electrical CharacteristicDC Electrical Characteristics Symbol Parameter Condition Min Typ Max UnitTa= -40C ~85 C, VDD= 3.0V, GND= Symbol Parameter Conditions Min Typ Max Unit AC Electrical CharacteristicsTa=- 40C ~ 85 C, VDD=5V±5%, GND=0V Vih/Vil /RESET pins with schmitt inverter Device CharacteristicVih/Vil Port 7, Port 8 All Input pins with schmitt inverter P5.7 Voh/Ioh VDD=5V, IROCS=1 P5.7 Voh/Ioh VDD=3V, IROCS=1 80 P5.7 Voh/Ioh VDD=5V, IROCS=0 Max Typ +25 Setup time from Power on Reset = 51 K 13 Typical Eric OSC Frequency vs. Temperature Xin Pin VDD=5V Typical ICC2 vs. Temerature Typical ICC1 vs. Temerature Typical ISB vs. Temerature 22 Operating Voltage under Temperature Range of 0C to 70C Application Circuit Name Package Type Pin Count Package Size Package TypeEM78P468NxS/xJ QFP Package Information900 100 BSC 00 REF LqfpMin Normal Max 30TYP 15TYP EM78P468N/L Program Pin List Wiring diagram is for Elan DwtrProgram Pin Name IC Pin Name QFP-64 QFP-44 Main oscillator RC mode, Sub oscillator Crystal Main oscillator Crystal mode, Sub oscillator Crystal modeMain oscillator PLL mode, Sub oscillator Crystal mode ICE 468XA Oscillator Circuit JPBit Microcontroller VLCD3 GND Osco ICE 468XA Output Pin Assignment JPAddress Trap Detect Quality Assurance and ReliabilityTest Category Test Conditions Contents III