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IBM EM78P447N manual

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  • Page 1

    EM78P447N 8-Bit Microcontroller with OTP ROM Product Specification D OC . V ERSION 1.1 ELAN MICROELECTRONICS CORP. March 2005[...]

  • Page 2

    T rademark Acknowledgments: IBM is a register ed trademark and PS/2 is a trademark of IBM. Window s is a trademark of Microsoft Corporation. ELAN and ELAN logo are trademarks of ELAN Micr oelectronics Corporation. Copyright © 2005 by ELAN Microelectr onics Corporation All Rights Reserved Printed in T aiwan The contents of this specificat ion are s[...]

  • Page 3

    Contents Product Specification (V1.1) 03.30.2005 • iii Contents 1 GENERAL DESCRIPTION ......................................................................................... 1 2 FEA TURES ................................................................................................................. 1 3 PIN ASSIGNMENT .........................[...]

  • Page 4

    Contents iv • Product Specification (V1.1) 03.30.2005 5 ABSOLUTE MAXIMUM RA TINGS ........................................................................... 34 6 DC ELECTRICAL CHARACTERISTICS .................................................................. 34 6.1 DC Electrical Characteristic ....................................................[...]

  • Page 5

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 1 (This specification is subject to change without further notice) 1 GENERAL DESCRIPTION EM78P447N is an 8-bit microprocessor with low-power and high-speed CMOS technology and high noise immunity. It is equipped wi th 4K*13-bits Electrical One Time Programmabl[...]

  • Page 6

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 2 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice)  Programmable free running watchdog timer  10 programmable pull-high pins  2 programmable open-drain pins  2 programmable R-option pins  Package types: • 20 pin DIP 300mil :EM7[...]

  • Page 7

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 3 (This specification is subject to change without further notice) 3 PIN ASSIGNMENT TCC VDD NC Vss /INT P50 P51 P53 P60 P61 P62 P63 P64 P52 /RESET OSCI OSCO P77 P76 P75 P74 P72 P71 P70 P67 P66 P65 P73 EM78P447NAP EM78P447 NAM 1 2 3 4 5 6 7 8 9 10 11 12 14 13 2[...]

  • Page 8

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 4 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Table 1 EM78P447NAP and EM78P447NAM Pin Description Symbol Pin No. Type Function VDD 2 - ■ Power supply . OSCI 27 I ■ XTAL type: Crystal input terminal or external clock input pin. ■ RC t[...]

  • Page 9

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 5 (This specification is subject to change without further notice) Table 3 EM78P447NBP and EM78P447NBWM Pin Description Symbol Pin No. Type Function VDD 4 - ■ Power supply . OSCI 29 I ■ XTAL type: Cry stal input terminal or external clock input pin. ■ RC[...]

  • Page 10

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 6 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Table 5 EM78P447NDK and EM78P447NDM Pin Description Symbol Pin No. Type Function VDD 3 - ■ Power supply. OSCI 19 I ■ XTAL type: Cry stal input terminal or external clock input pin. ■ RC t[...]

  • Page 11

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 7 (This specification is subject to change without further notice) 4.1 Operational Registers 4.1.1 R0 (Indirect Addressing Register) R0 is not a physically implemented register. Its major function is to act as an indirect addressing pointer. Any instruction us[...]

  • Page 12

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 8 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice)  All instruction are single instruction cycle (f clk/2 or fcl k/4) except for the instruction that would change the contents of R2. Such instruction will need one more instruction cycle. A7 [...]

  • Page 13

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 9 (This specification is subject to change without further notice) Aaddress R PAGE r egisters IOC PAG E registers 00 R0 (Indirect Addressing Register) Reserve 01 R1 (Time Clock Co unter) CONT (Control Register) 02 R2 (Program Counter) Reserve 03 R3 (Status Reg[...]

  • Page 14

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 10 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 4.1.4 R3 (Status Register) 7 6 5 4 3 2 1 0 GP PS1 PS0 T P Z DC C Bit 7 (GP) General read/write bit. Bits 6 (PS1) ~ 5 (PS0) Page select bits. PS1~PS0 ar e used to pre-select a program memory pa[...]

  • Page 15

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 11 (This specification is subject to change without further notice) 4.1.8 R3F (Interrupt Status Register) Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 - - - - EXIF - - TCIF Bit 3 (EXIF) External interrupt flag. Set by falling edge on /INT pin, flag cleared [...]

  • Page 16

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 12 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Bit 4 (TE) TCC signal edge 0: increment if the transition from low to high takes place on TCC pin 1: increment if the transition from high to low takes place on TCC pin Bit 3 (PAB) Prescaler a[...]

  • Page 17

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 13 (This specification is subject to change without further notice) 4.2.5 IOCE (WDT Control Register) 7 6 5 4 3 2 1 0 - ODE WDTE SLPC ROC - - /WUE Bit 6 (ODE) Control bit is used to enable the open-drain of P76 and P77 pins 0: Disable open-drain output. 1: Ena[...]

  • Page 18

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 14 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 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,[...]

  • Page 19

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 15 (This specification is subject to change without further notice) 4.3 TCC/WDT & Prescaler An 8-bit counter is available as prescale r for the TCC or WDT. The prescaler is available for either the TCC or WDT only at any given time, and the PAB bit of the [...]

  • Page 20

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 16 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 4.4 I/O Port s The I/O registers, Port 5, Port 6, and Port 7, are bi-directional tri-state I/O ports. The functions of Pull-high, R-option, and O pen-drain can be performed internally by CONT [...]

  • Page 21

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 17 (This specification is subject to change without further notice) 4.5 RESET and W ake-up 4.5.1 RESET A RESET is initiated by one of the following events- (1) Power on reset, or (2) /RESET pin input “low”, or (3) WDT timeout. (if enabled) The device is ke[...]

  • Page 22

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 18 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) (A) Any of the wake-up pins is “0” as illust ra ted in Figure. 5. Upon waking, the controller will continue to execute the succeeding address. Under this case, before entering SLEEP2 MODE,[...]

  • Page 23

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 19 (This specification is subject to change without further notice) NOTE  After w aking up from the SLEEP2 m ode, WDT is automatically enabled . The WDT enabled/disabled oper ation after waking up from SLEEP2 mo de should be appropriately defined in the sof[...]

  • Page 24

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 20 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Address Name Reset Type Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Wake-Up from Pin Change P P P P P P P P Bit Name P57 P56 P55 P54 P53 P52 P51 P50 0x05 R5(P5) Power-On U U U U U U U U /R[...]

  • Page 25

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 21 (This specification is subject to change without further notice) 4.5.2 The Status of RST, T, and P of STATUS Register A RESET condition is initiated by one of the following events: 1. A power-on condition, 2. A high-low-high pulse on /RESET pin, and 3. Watc[...]

  • Page 26

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 22 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Voltage Detector Power-o n Reset WDTE Setup Time VDD DQ CLK CLR CLK RESET WDT Tim eou t WDT /RESET Oscillator Fig. 8 Controller Reset Block Diagram 4.6 Interrupt The EM78P447N has two interrup[...]

  • Page 27

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 23 (This specification is subject to change without further notice) INT ENI/DISI IOD RFWR IOCFRD IOCFWR IRQn IRQm RFRD IOCF /RES ET /IRQn VCC RF CLK CLK Q Q D P R L C _ P R L C Q Q _ D Fig. 9 Interrupt Input Circuit 4.7 Oscillator 4.7.1 Oscillator Modes The EM[...]

  • Page 28

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 24 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Table 11 The Summary of Maximum Operating Speeds Conditions VDD Fxt max.(MHz) 2.3 4.0 3.0 8.0 Two cycles w ith two clocks 5.0 20.0 4.7.2 Crystal Oscillator/Ceramic Resonators(XTAL) EM78P447N c[...]

  • Page 29

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 25 (This specification is subject to change without further notice) Table 12 Capacitor Selection Guide for Crystal Oscillator or Ceramic Resonator Oscillator Type Frequency Mode Frequency C1(pF) C2(pF) 455 kHz 100~150 100~150 2.0 MHz 20~40 20~40 Ceramic Resona[...]

  • Page 30

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 26 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Table 13 RC Oscillator Frequencies Cext Rext A verage Fosc 5V,25 ° C Av erage Fosc 3V,25 ° C 3.3k 4.32 MHz 3.56 MHz 5.1k 2.83 MHz 2.8 MHz 10k 1.62MHz 1.57 MHz 20 pF 100k 184 KHz 187 KHz 3.3k[...]

  • Page 31

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 27 (This specification is subject to change without further notice) Bit 8 (CLKS): Instruction period option bit. 0: two oscillator periods. 1: four oscillator periods. Refer to the section on Instruction Set. Bit 7(ENWDTB): Watchdog timer enable bit. 0: Enable[...]

  • Page 32

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 28 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 4.8.2 Customer ID Register (Word 1) Word 1 Bit 12~Bit 0 XXXXXXXXXXXXX Bit 12~0: Customer’s ID code 4.9 Power On Considerations Any microcontroller is not guaranteed to start and operate prop[...]

  • Page 33

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 29 (This specification is subject to change without further notice) 4.1 1 Residue-V olt age Protection When battery is replaced, device p ower (Vdd) is taken off but residue-voltage remains. The residue-voltage m ay trips below Vdd minimum, but not to zero. Th[...]

  • Page 34

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 30 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 4.12 Instruction Set Each instruction in the instruction set is a 13-bit word divided into an OP code and one or more operands. Normally, all instruct i ons are executed within one single inst[...]

  • Page 35

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 31 (This specification is subject to change without further notice) INSTRUCTION BINARY HEX MNEMONIC OPERA TION STA TUS AFFECTED 0 0000 0000 000 0000 NOP No Operation None 0 0000 0000 001 0001 DAA Decimal Adjust A C 0 0000 0000 010 0002 CONTW A → CONT None 0 [...]

  • Page 36

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 32 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) INSTRUCTION BINARY HEX MNEMONIC OPERA TION STA TUS AFFECTED 0 0101 10rr rrrr 05rr DJZA R R-1 → A, skip if zero None 0 0101 11rr rrrr 05rr DJZ R R-1 → R, skip if zero None 0 0110 00rr rrrr [...]

  • Page 37

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 33 (This specification is subject to change without further notice) 4.13 T iming Diagram RESET Ti m i ng ( CLK=" 0" ) CLK / RESET NOP Inst ruct i on 1 Executed Tdr h TCC I nput Ti m i ng ( CLKS="0 ") CLK TCC Tt cc Ti n s AC Tes ti ng : I np[...]

  • Page 38

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 34 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 5 ABSOLUTE MAXIMUM RATINGS Items Rating Temperature under bias -40 ° C to 85 ° C Storage temperature -65 ° C to 150 ° C Input voltage VSS-0.3V to VDD+0.5V Output voltage VSS-0. 3V to VDD+0[...]

  • Page 39

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 35 (This specification is subject to change without further notice) Symbol Parameter Condition Min Ty p. Max Unit ISB2 Power down current All input and I/O pins at VDD, output pin floating, WDT enabled 7 µ A ICC1 Operating supply current (VDD=3V) at two cy cl[...]

  • Page 40

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 36 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 6.3 Device characteristic The graphic provided in the following pages were derived based on a limited num ber of samples and are shown here for reference only. The device characteristic illust[...]

  • Page 41

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 37 (This specification is subject to change without further notice) V oh/ Ioh (V D D =5V ) -25 -20 -15 -10 -5 0 01 23 45 V oh(V ol t ) Ioh(mA) Fig.18 Port5, Port6, and Port7 V oh vs. Ioh,VDD=5V Min 85 ℃ T yp 25 ℃ Max -40 ℃[...]

  • Page 42

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 38 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Voh/Ioh (VDD=3V) -10 -8 -6 -4 -2 0 00 . 5 11 . 522 . 53 Voh(Volt) Ioh(mA) Fig.19 Port5, Port6, and Po rt7 V oh vs. Ioh, VDD=3V Min 85 ℃ T yp 25 ℃ Max -40 ℃[...]

  • Page 43

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 39 (This specification is subject to change without further notice) Vo l / Io l (VDD= 5 V) 0 10 20 30 40 50 60 70 80 90 01 23 45 6 Vo l (Vo l t ) Iol(mA) Fig. 20 Port5, and Port6 V ol vs, Iol, VDD=5V Min 85 ℃ T yp 25 ℃ Max -40 ℃[...]

  • Page 44

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 40 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Vol/Iol (VDD=3V) 0 5 10 15 20 25 30 35 40 0 0.5 1 1.5 2 2.5 3 Vol(Volt) Iol(mA) Fig. 21 Port5, and Port6 V ol vs. Iol, VDD=3V Min 85 ℃ T yp 25 ℃ Max -40 ℃[...]

  • Page 45

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 41 (This specification is subject to change without further notice) Vol/I ol (5V) 0 10 20 30 40 50 60 70 80 90 100 0123456 Vol(Volt) Iol(mA) Fig. 22 Port7 V ol vs. Iol, VDD=5V Min 85 ℃ T yp 25 ℃ Max -40 ℃[...]

  • Page 46

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 42 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Vol/I ol (3V) 0 5 10 15 20 25 30 35 40 45 0 0.5 1 1.5 2 2.5 3 Vol(Volt) Iol(mA) Fig. 23 Port7 V ol vs. Iol, VDD=3V Min 85 ℃ T yp 25 ℃ Max -40 ℃[...]

  • Page 47

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 43 (This specification is subject to change without further notice) WDT Time_out 0 5 10 15 20 25 30 35 23456 VDD (Volt) WDT period (mS) Fig. 24 WDT Time Out Period vs. VDD, Prescaler Set to 1 : 1 Max 85 ℃ Max 75 ℃ T yp 25 ℃ Min -40 ℃ Min 0 ℃[...]

  • Page 48

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 44 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Cext=100pF, Ty pical RC OSC F requency 0 0.2 0.4 0.6 0.8 1 1.2 1.4 2.5 3 3.5 4 4.5 5 5.5 VDD(Volt) Frequency(M Hz) Fig. 25 T ypical RC OSC Frequency vs. VDD （ Cext=100pF , T emperature at 25[...]

  • Page 49

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 45 (This specification is subject to change without further notice) E R C O SC Frequ en cy v s T em p.( C ex t =100pF, R ex t =5.1K ) 0.98 0.985 0.99 0.995 1 1.005 - 4 0 - 2 0 0 2 04 06 08 0 T em p erat u re( ℃ ) Fosc/Fosc(25 ℃ ) Fig. 26 T ypical RC OSC Fr[...]

  • Page 50

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 46 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Maximum ICC1 and I CC2 vs. Temperature 15 18 21 24 27 - 4 0 - 2 0 0 2 04 06 08 0 Temperature ( ℃ ) Current (uA) Fig. 28 Maximum Operating Current （ ICC1 and ICC2 ） vs. T emperature Ty pi[...]

  • Page 51

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 47 (This specification is subject to change without further notice) Maximum ICC3 and ICC4 vs. Temperature 1 1.5 2 2.5 3 3.5 4 4.5 -40 -20 0 20 40 60 80 Temperature ( ℃ ) Current (mA) Fig. 30 Maximum Operating Current （ ICC3 and ICC4 ） vs. T emperature Tw[...]

  • Page 52

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 48 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) Maximum ISB1 and I SB2 vs. Temperature 0 3 6 9 12 15 - 4 0 - 2 0 0 2 04 06 08 0 Temperature ( ℃ ) Current (uA) Fig. 32 Maximum S tandby Current （ ISB1 and ISB2 ） vs. T emperature Operati[...]

  • Page 53

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 49 (This specification is subject to change without further notice) EM78P447N HXT I -V 0 0.5 1 1.5 2 2.5 3 0123456 Volt(V) I(mA) Fig. 34 EM78P447N I-V Curve Operating at 4 MHz EM78P447N L X T I-V 0 5 10 15 20 25 30 35 40 012345 6 Volt(V) I(uA) Fig. 35 EM78P447[...]

  • Page 54

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 50 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) APPENDIX A Package Types OTP MCU Package Type Pin Count Package Size EM78P447NCP DIP 20 300 mil EM78P447NCM SOP 20 300 mil EM78P447NDK Skinny DIP 24 300 mil EM78P447NDM SOP 24 300 mil EM78P447[...]

  • Page 55

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 51 (This specification is subject to change without further notice) 24-Lead plastic dual inline skinny package （ DIP ）－ 300 mil TITLE: PDIP-24L SKINNY 300MIL PACK AGE OUTLINE D IMENSION Unit : mm Scale: Fr ee File : K24 Material: Edtion: A Sheet:1 of 1 A[...]

  • Page 56

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 52 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 32-Lead plastic dual inline package （ DIP ）－ 600 mil 20-Lead plastic small outline package （ SOP ）－ 300 mil TITLE: SOP-20L(300MIL) PACKAGE OUTLINE DIMENSION Unit : mm Scale: Free F[...]

  • Page 57

    EM78P447N 8-Bit Microcontroller w ith OTP ROM Product Specification (V1.1) 03.30.2005 • 53 (This specification is subject to change without further notice) 24-Lead plastic small outline package （ SOP ）－ 300 mil TITLE: SOP-24L(300MIL) PACKAGE OUTLINE DIMENSION Unit : mm Scale: Free File : SO24 Material: Edtion: A Sheet:1 of 1 be Sy mb al A A[...]

  • Page 58

    EM78P447N 8-Bit Microcontroller w ith OTP ROM 54 • Product Specification (V1.1) 03.30.2005 (This specification is subject to change without further notice) 32-Lead plastic small outline package （ SOP ）－ 300 mil 28-Lead Shrink Small Outline Package （ SSOP ）－ 209 mil[...]