EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT GENERAL DESCRIPTION EM73361A is an advanced single chip CMOS 4-bit micro-controller. It contains 3K-byte ROM, 52-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel function. EM73361A also contains 3 interrupt sources, 1 input port, 4 bidirection I/O ports, built-in watch-dog-timer counter, tone generator and LCD driver (27x3 to 13x3). Except low-power consumption and high speed, EM73361A also have a sleep mode operation for power saving. FEATURES • Operation voltage • Clock source • • • • • • • • • • • • • • • • : 2.2V to 3.6V(clock frequency : 32K Hz). : Single clock system for crystal, connect a external resistor or external clock source available by mask option. Instruction set : 109 powerful instructions. Instruction cycle time : 122µs for 32K Hz. ROM capacity : 3072 X 8 bits. RAM capacity : 52 X 4 bits. Input port : 1 port (P0)(Pull-up and pull-down resistor with wakeup function available by mask option). Bidirection port : 4 ports (P4, P5, P6, P7) are available by mask option. (each I/O pin is push-pull and open-drain available by mask option) P4.0 is high current pin (P4.0 and TONE available by mask option). P4.2~P4.3, P5, P6 and P7 are shared with SEG26-SEG13 by mask option. 12-bit timer/counter : Two 12-bit timer/counters are programmable for timer mode. Low voltage reset (LVR) : Reset at 1.5V, and reset release at 1.8V. Tone generator : There is a built-in tone generator. Built-in time base counter : 22 stages. Subroutine nesting : Up to 13 levels. Interrupt : External . . . . . 2 External interrupt (INT0, INT1). Internal . . . . . . 2 Timer overflow interrupts. 1 Time base interrupt. LCD driver : 27 X 3 to 13 X 3 dots available by mask option. Capacitor divider and resistor divider are available by mask option.1/3, 1/2 and static three kinds of duty (1/2 bias) selectable. The programming method of LCD driver is I/O mapping. Built-in watch-dog-timer : The WDT is enabled or disabled by mask option. Power saving function : Sleep mode and Hold mode. Package type : EM73361AAH Chip form 46 pins. EM73361AAQ QFP 100 pins. APPLICATIONS EM73361A is suitable for application in family appliance, consumer products, hand held games and the toy controller. * This specification are subject to be changed without notice. 10.8.2001 1 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 NC NC NC NC NC NC NC P7.0/SEG16 P6.3/SEG17 P6.2/SEG18 P6.1/SEG19 P6.0/SEG20 P5.3/SEG21 P5.2/SEG22 P5.1/SEG23 P5.0/SEG24 P4.3/SEG25 P4.2/SEG26 COM2 TEST NC NC NC NC NC NC NC NC NC NC PIN CONFIGURATIONS 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 EM73361AAQ QFP 100 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 NC NC NC NC NC P4.1/WDT P4.0/TONE TONE P0.3/WAKEUP3 P0.2(INT0)/WAKEUP2 P0.1/WAKEUP1 P0.0(INT1)/WAKEUP0 RESET VDD VSS NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC SEG2 SEG1 SEG0 COM1 COM0 VEE VB VA XIN XOUT NC NC NC NC NC NC NC NC NC NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 NC NC NC NC P7.1/SEG15 P7.2/SEG14 P7.3/SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 NC NC NC * This specification are subject to be changed without notice. 10.8.2001 2 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT FUNCTION BLOCK DIAGRAM RESET Reset Control XIN XOUT Clock Generator Frequency doubler P0.0(INT1)/WAKEUP0 P0.1/WAKEUP1 P0.2(INT0)/WAKEUP2 P0.3/WAKEUP3 Sleep Mode Control Timing Generator VA VB VEE COM0~COM2 SEG0~SEG12 System Control Data pointer ROM Time Base 12-bit timer counter (TA,TB) Stack pointer LCD driver ACC P4,P5,P6,P7/SEG(26..13) Data Bus Interrupt Control Instruction Decoder Instruction Register Stack ALU RAM Flag Z C S HR PC Tone generator TONE G LR I/O Control P4.0/TONE P4.1/WDT WDT PIN DESCRIPTIONS Symbol V DD V SS RESET XIN XOUT P0.0(INT1)/WAKEUP0, P0.2(INT0)/WAKEUP2 P0.1/WAKEUP1, P0.3/WAKEUP3 Pin-type Function Power supply (+) Power supply (-) RESET-A System reset input signal, low active mask option : none pull-up OSC-A/OSC-F Crystal/external resistor or external clock source connecting pin OSC-A/OSC-F Crystal/external resistor connecting pin INPUT-J 2-bit input port with external interrupt sources input and Sleep/Hold releasing function mask option : wakeup enable, pull-up wakeup enable, none wakeup disable, pull-up wakeup disable, none wakeup disable, pull-down INPUT-H 2-bit input port with Sleep/Hold releasing function mask option : wakeup enable, pull-up wakeup enable, none * This specification are subject to be changed without notice. 10.8.2001 3 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT Symbol Pin-type P4.0/TONE I/O-O P4.1/WDT I/O-D P4(2..3)/SEG(26..25) P5(0..3)/SEG(24..21) P6(0..3)/SEG(20..17) P7(0..3)/SEG(16..13) TONE VA, VB, VEE COM0~COM2 SEG0~SEG12 TEST I/O-P Function wakeup disable, pull-up wakeup disable, pull-down wakeup disable, none 1-bit bidirection I/O pin or inverse tone generator output mask option : TONE enable, push-pull, high current PMOS TONE disable, open-drain TONE disable, push-pull, high current PMOS TONE disable, push-pull, low current PMOS 1-bit bidirection I/O pin with watch-dog-timer output mask option : open-drain push-pull 4-bit bidirection I/O ports are shared with LCD segment pins mask option : segment enable, open-drain segment disable, push-pull segment disable, open-drain Built-in tone generator output Connect the capacitors for LCD bias voltage LCD common output pins LCD segment output pins Tie Vss as package type, no connecting as COB type FUNCTION DESCRIPTIONS PROGRAM ROM ( 3K X 8 bits ) 3 K x 8 bits program ROM contains user's program and some fixed data . The basic structure of program ROM can be divided into 4 parts. 1. Address 000h: Reset start address. 2. Address 002h - 00Ch: 4 kinds of interrupt service routine entry addresses . 3. Address 00Eh-086h : SCALL subroutine entry address, only available at 00Eh,016h,01Eh,026h, 02Eh, 036h, 03Eh, 046h, 04Eh, 056h, 05Eh, 066h, 06Eh, 076h ,07Eh, 086h . 4. Address 000h - 7FFh : LCALL subroutine entry address 5. Address 000h - BFFh : Except used as above function, the other region can be used as user's program region. address 000h 002h 004h 006h 008h 00Ah 00Ch 00Eh 086h 3072 x 8 bits Reset start address INT0 ; External interrupt service toutine entry address TRGA; Timer/counter A interrupt service routine entry address TRGB; Timer/counter B interrupt service routine entry address TBI; Time base interrupt service routine entry address INT1; External interrupt service routine entry address SCALL, subroutine call entry address .. . BFFh * This specification are subject to be changed without notice. 10.8.2001 4 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT User's program and fixed data are stored in the program ROM. User's program is according the PC value to send next executed instruction code. Fixed data can be read out by table-look-up instruction. Table-look-up instruction is depended on the Data Pointer ( DP ) to indicate to ROM address, then to get the ROM code data. LDAX Acc ← ROM[DP]L LDAXI Acc ← ROM[DP]H,DP+1 DP is a 12-bit data register which can store the program ROM address to be the pointer for the ROM code data. First, user load ROM address into DP by instruction "STADPL, STADPM, STADPH", then user can get the lower nibble of ROM code data by instruction "LDAX" and higher nibble by instruction "LDAXI". PROGRAM EXAMPLE: Read out the ROM code of address 777h by table-look-up instruction. LDIA #07h; STADPL STADPM STADPH : LDL #00h; LDH #03h; LDAX STAMI LDAXI STAM ; ORG 777h DATA 56h; : ; [DP]L ← 07h ; [DP]M ← 07h ; [DP]H ← 07h, Load DP=777h ; ACC ← 6h ; RAM[30] ← 6h ; ACC ← 5h ; RAM[31] ← 5h DATA RAM ( 52-nibble ) There is total 52 - nibble data RAM from address 00 to 33h Data RAM includes 3 parts: zero page region, stacks and data area. Increment Address Level 0 Level 1 Level 2 Level 3 10h - 1Fh Level 4 Level 5 Level 6 Level 7 20h - 2Fh Level 8 Level 9 Level 10 Level 11 30h - 33h Level 12 Stack Increment 00h - 0Fh Zero-page ZERO- PAGE: From 00h to 0Fh is the location of zero-page. It is used as the pointer in zero -page addressing mode for the instruction of "STD #k,y; ADD #k,y; CLR y,b; CMP k,y". PROGRAM EXAMPLE: To wirte immediate data "07h" to address "03h" of RAM and to clear bit 2 of RAM. STD #07h, 03h ; RAM[03] ← 07h CLR 0Eh,2 ; RAM[0Eh]2 ← 0 STACK: There are 13 - level (maximum) stack for user using for subroutine (including interrupt and CALL). User can assign any level be the starting stack by giving the level number to stack pointer (SP). * This specification are subject to be changed without notice. 10.8.2001 5 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT When user using any instruction of CALL or subroutine, before entry the subroutine, the previous PC address will be saved into stack until return from those subroutines, the PC value will be restored by the data saved in stack. DATA AREA: Except the special area used by user, the whole RAM can be used as data area for storing and loading general data. ADDRESSING MODE (1) Indirect addressing mode: Indirect addressing mode indicates the RAM address by specified HL register. For example: LDAM ; Acc ← RAM[HL] STAM ; RAM[HL] ← Acc (2) Direct addressing mode: Direct addressing mode indicates the RAM address by immediate data. For example: LDA x ; Acc← RAM[x] STA x ; RAM[x] ← Acc (3) Zero-page addressing mode For zero-page region, user can using direct addressing to write or do any arithematic, comparsion or bit manupulated operation directly. For example: STD #k,y ; RAM[y] ← #k ADD #k,y; RAM[y] ← RAM[y] + #k PROGRAM COUNTER (3K ROM) Program counter ( PC ) is composed by a 12-bit counter, which indicates the next executed address for the instruction of program ROM. For a 3K - byte size ROM, PC can indicate address form 000h - BFFh, for BRANCH and CALL instrcutions, PC is changed by instruction indicating. (1) Branch instruction: SBR a Object code: 00aa aaaa Condition: SF=1; PC ← PC 11-6.a ( branch condition satisified ) PC Hold original PC value+1 a a a a a a SF=0; PC← PC +1( branch condition not satisified) PC Original PC value + 1 LBR a Object code: 1100 aaaa aaaa aaaa Condition: SF=1; PC ← a ( branch condition satisified) PC a a a a a a a a a a a * This specification are subject to be changed without notice. a 10.8.2001 6 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT SF=0 ; PC ← PC + 2 ( branch condition not satisified ) PC Original PC value + 2 (2) Subroutine instruction: SCALL a Object code: 1110 nnnn Condition : PC ← a ; a=8n+6 ; n=1..15 ; a=86h, n=0 PC 0 0 0 0 a a a a a a a a a a a a a a LCALL a Object code: 0100 0aaa aaaa aaaa Condition: PC ← a PC 0 a a a a a RET Object code: 0100 1111 Condition: PC ← STACK[SP]; SP + 1 PC The return address stored in stack RT I Object code: 0100 1101 Condition : FLAG. PC ← STACK[SP]; EI ← 1; SP + 1 PC The return address stored in stack (3) Interrupt acceptance operation: When an interrupt is accepted, the original PC is pushed into stack and interrupt vector will be loaded into PC,The interrupt vectors are as following: INT0 (External interrupt from P0.2) PC 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 TRGA (Timer A overflow interrupt) PC 0 0 0 0 0 TRGB (Time B overflow interrupt) PC 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 TBI (Time base interrupt) PC 0 0 0 * This specification are subject to be changed without notice. 10.8.2001 7 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT INT1 (External interrupt from P0.0) PC 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 (4) Reset operation: PC 0 (5) Other operations: For 1-byte instruction execution: PC + 1 For 2-byte instruction execution: PC + 2 ACCUMULATOR Accumulator is a 4-bit data register for temporary data . For the arithematic, logic and comparative opertion .., ACC plays a role which holds the source data and result . FLAGS There are four kinds of flag, CF ( Carry flag ), ZF ( Zero flag ), SF ( Status flag ) and GF ( General flag ), these 4 1-bit flags are affected by the arithematic, logic and comparative .... operation . All flags will be put into stack when an interrupt subroutine is served, and the flags will be restored after RTI instruction executed . (1) Carry Flag ( CF ) The carry flag is affected by following operation: a. Addition : CF as a carry out indicator, when the addition operation has a carry-out, CF will be "1", in another word, if the operation has no carry-out, CF will be "0". b. Subtraction : CF as a borrow-in indicator, when the subtraction operation must has a borrow, in the CF will be "0", in another word, if no borrow-in, CF will be "1". c. Comparision: CF is as a borrow-in indicator for Comparision operation as the same as subtraction operation. d. Rotation: CF shifts into the empty bit of accumulator for the rotation and holds the shift out data after rotation. e. CF test instruction : For TFCFC instruction, the content of CF sends into SF then clear itself "0". For TTSFC instruction, the content of CF sends into SF then set itself "1". (2) Zero Flag ( ZF ) ZF is affected by the result of ALU, if the ALU operation generate a "0" result, the ZF will be "1", otherwise, the ZF will be "0". (3) Status Flag ( SF ) The SF is affected by instruction operation and system status . * This specification are subject to be changed without notice. 10.8.2001 8 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT a. SF is initiated to "1" for reset condition . b. Branch instruction is decided by SF, when SF=1, branch condition will be satisified, otherwise, branch condition will not be satisified by SF = 0 . (4) General Flag ( GF ) GF is a one bit general purpose register which can be set, clear, test by instruction SGF, CGF and TGS. PROGRAM EXAMPLE: Check following arithematic operation for CF, ZF, SF CF - LDIA #00h; LDIA #03h; ADDA #05h; ADDA #0Dh; ADDA #0Eh; ZF 1 0 0 0 0 SF 1 1 1 0 0 ALU The arithematic operation of 4 - bit data is performed in ALU unit . There are 2 flags can be affected by the result of ALU operation, ZF and SF . The operation of ALU can be affected by CF only . ALU STRUCTURE ALU supported user arithematic operation function, including : addition, subtraction and rotaion. DATA BUS ALU ZF CF SF GF ALU FUNCTION (1) Addition: For instruction ADDAM, ADCAM, ADDM #k, ADD #k,y .... ALU supports addition function. The addition operation can affect CF and ZF. For addition operation, if the result is "0", ZF will be "1", otherwise, not equal "0", ZF will be "0", When the addition operation has a carry-out. CF will be "1", otherwise, CF will be "0". EXAMPLE: Operation 3+4=7 7+F=6 0+0=0 8+8=0 Carry 0 1 0 1 Zero 0 0 1 1 (2) Subtraction: For instruction SUBM #k, SUBA #k, SBCAM, DECM... ALU supports user subtraction function . The subtraction operation can affect CF and ZF, For subtraction operation, if the result is negative, CF will * This specification are subject to be changed without notice. 10.8.2001 9 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT be "0", it means a borrow out, otherwise, if the result is positive, CF will be "1". For ZF, if the result of subtraction operation is "0", the ZF will be "1", otherwise, ZF will be "1". EXAMPLE: Operation 8-4=4 7-F= -8(1000) 9-9=0 Carry 1 0 1 Zero 0 0 1 (3) Rotation: There are two kinds of rotation operation, one is rotation left, the other is rotation right. RLCA instruction rotates Acc value to left, shift the CF value into the LSB bit of Acc and the shift out data will be hold in CF. MSB LSB ACC CF RRCA instruction operation rotates Acc value to right, shift the CF value into the MSB bit of Acc and the shift out data will be hold in CF. MSB LSB ACC CF PROGRAM EXAMPLE: To rotate Acc right and shift a "1" into the MSB bit of Acc . TTCFS; CF ← 1 RRCA; rotate Acc right and shift CF=1 into MSB. HL REGISTER HL register are two 4-bit registers, they are used as a pair of pointer for the address of RAM memory and also 2 independent temporary 4-bit data registers. For some instruction, L register can be a pointer to indicate the pin number ( Port4, Port6, Port7 ) . HL REGISTER STRUCTURE 3 2 1 0 3 2 1 0 H REGISTER L REGISTER HL REGISTER FUNCTION (1) For instruction : LDL #k, LDH #k, THA, THL, INCL, DECL, EXAL, EXAH, HL register used as a temporary register . PROGRAM EXAMPLE: Load immediate data "5h" into L register, "Dh" into H register. LDL #05h; LDH #0Dh; (2) For instruction LDAM, STAM, STAMI .., HL register used as a pointer for the address of RAM memory. * This specification are subject to be changed without notice. 10.8.2001 10 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT PROGRAM EXAMPLE: Store immediate data #Ah into RAM of address 35h. LDL #5h; LDH #3h; STDMI #0Ah; RAM[35] ← Ah (3) For instruction : SELP, CLPL, TFPL, L regieter be a pointer to indicate the bit of I/O port. When LR = 0 - 1, indicate P4.0 - P4.1. PROGRAM EXAMPLE: To set bit 1 of Port4 to "1" LDL #01h; SEPL ; P4.1 ← 1 STACK POINTER (SP) Stack pointer is a 4-bit register which stores the present stack level number. Before using stack, user must set the SP value first, CPU will not initiate the SP value after reset condition . When a new subroutine is accepted, the SP will be decreased one automatically, in another word, if returning from a subroutine, the SP will be increased one . The data transfer between ACC and SP is by instruction of "LDASP" and "STASP". DATA POINTER (DP) Data pointer is a 12-bit register which stores the address of ROM can indicate the ROM code data specified by user (refer to data ROM). CLOCK AND TIMING GENERATOR The clock generator is supported by a single clock system, the clock source comes from crystal (resonator) or RC oscillation, the working frequency range is 32 KHz to 100 KHz depending on the working voltage. CLOCK AND TIMING GENERATOR STRUCTURE The clock generator connects outside compoments ( crystal or resonator by XIN and XOUT pin for crystal osc type, capacitor for RC osc type, these two type is decided by mask option) the clock generator generates a basic system clock "fc". When CPU sleeping, the clock generator will be stoped until the sleep condition released. The system clock control generates 4 basic phase signals ( S1, S2, S3, S4 ) and system clock . Mask option sleep XIN XIN/CLK clock generator Mask option for choose Crystal or RC oscillation fc System clock System clock control XOUT S1 * This specification are subject to be changed without notice. S2 S3 S4 10.8.2001 11 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT XIN XIN XOUT XOUT Crystal connection Resistor connection CLOCK AND TIMING GENERATOR FUNCTION The frequency of fc is the oscillation frequency for XIN, XOUT by crystal ( resonator) or by RC osc. When CPU sleeps, the XOUT pin will be in "high" state . The instruction cycle equal 4 basic clock fc. 1 instructure cycle = 4 / fc TIMING GENERATOR AND TIME BASE The timing generator produces the system clock from basic clock pulse which can be normal mode or slow mode clock. 1 instruction cycle = 4 basic clock pulses There are 22 stages time base . Binary counter Prescaler fc 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 When working in the single clock mode, the timebase clock source is come from fc. Time base provides basic frequency for following function: 1. TBI (time base interrupt) . 2. Timer/counter, internal clock source. 3. Warm-up time for sleep - mode releasing. TIME BASE INTERRUPT (TBI ) The time base can be used to generate a fixed frequency interrupt . There are 8 kinds of frequencies can be selected by setting "P25" Single clock mode P25 3 2 1 0 ( initial value 0000 ) 0 0 x x: Interrupt disable 0 1 0 0: Interrupt frequency XIN / 29 Hz 0 1 0 1: Interrupt frequency XIN / 210 Hz 0 1 1 0: Interrupt frequency XIN / 212 Hz 0 1 1 1: Interrupt frequency XIN / 213 Hz 1 1 0 0: Interrupt frequency XIN / 214 Hz 1 1 0 1: Interrupt frequency XIN / 215 Hz 1 1 1 0: Interrupt frequency XIN / 216 Hz 1 1 1 1: Interrupt frequency XIN / 217 Hz 1 0 x x: Reserved * This specification are subject to be changed without notice. 10.8.2001 12 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT TIMER / COUNTER ( TIMERA, TIMERB) EM73361A only can support timer function for timerA and timerB independently. For timerA, the counter data is saved in timer register TAH, TAM, TAL, which user can set counter initial value and read the counter value by instruction "LDATAH(M,L), STATAH(M,L)" and timerB register is TBH, TBM, TBL and W/R instruction "LDATBH (M,L), STATBH (M,L)". The basic structure of timer/counter is composed by two same structure counter, these two counters can be set initial value and send counter value to timer register, P28 and P29 are the command ports for timerA and timer B, user can choose different internal clock rate by setting these two ports. When timer/counter overflow, it will generate a TRGA(B) interrupt request to interrupt control unit. INTERRUPT CONTROL TRGB request TRGA request DATA BUS 12 BIT COUNTER internal clock 12 BIT COUNTER TIMER CONTROL P28 TMSA IPSA TIMER CONTROL TMSB P29 internal clock IPSB TIMER/COUNTER CONTROL Timer/counter command port: P28 is the command port for timer/counterA and P29 is for the timer/ counterB. Port 28 3 2 1 0 TMSA IPSA Initial state: 0000 Port 29 3 2 1 0 TMSB IPSB Initial state: 0000 TIMER/COUNTER MODE SELECTION TMSA (B) Function description 00 Stop 01 Reserved 10 Timer mode 11 Reserved INTERNAL PULSE-RATE SELECTION IPSA(B) 00 Function description XIN/2 5 Hz 01 XIN/2 10 XIN/2 11 XIN/215 Hz * This specification are subject to be changed without notice. 7 11 Hz Hz 10.8.2001 13 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT TIMER/COUNTER FUNCTION Each timer/counter can execute the timer function independly. TIMER MODE For timer mode ,timer/counter increase one at any rising edge of internal pulse . User can choose 4 kinds of internal pulse rate by setting IPSB for timerB (IPSA for timerA). When timer/counter counts overflow, TRGB (TRGA) will be generated to interrupt control unit. Internal pulse TimerB (TimerA )value n n+1 n+2 n+3 n+4 n+5 n+6 n+7 PROGRAM EXAMPLE: To generate TRGA interrupt request after 60 ms with system clock XlN=32K Hz LDIA #0100B; EXAE; enable mask 2 EICIL 110111B; internupt latch ← 0, enable EI LDIA #04H; STATAL; LDIA #0CH; STATAM; LDIA #0FH; STATAH; LDIA #1000B; OUTA P28; enable timerA with internal pulse rate: XIN/25 Hz NOTE: The preset value of timer/counter register is calculated as following procedure. Internal pulse rate: XIN/25 ; XIN = 32KHz The time of timer counter count one = 25 /XIN = 32/32K=1ms The number of internal pulse to get timer overflow = 60 ms/ 1ms = 60 = 03CH The preset value of timer/counter register = 1000H - 03CH = 0FC4H INTERRUPT FUNCTION There are 3 internal interrupt sources and 2 external interrupt sources. Multiple interrupts are admitted according the priority . Type External Internal Internal Internal Internal External Interrupt source External interrupt (INT0) Reserved TimerA overflow interrupt (TRGA) TimerB overflow interrupt (TRGB) Time base interrupt(TBI) External interrupt (INT1) Priority Interrupt Latch Interrupt Enable condition Program ROM entry address 1 2 3 4 5 6 IL5 IL4 IL3 IL2 IL1 IL0 EI=1 EI=1, MASK3=1 EI=1, MASK2=1 EI=1, MASK1=1 002H 004H 006H 008H 00AH 00CH * This specification are subject to be changed without notice. EI=1,MASK0=1 10.8.2001 14 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT INTERRUPT STRUCTURE MASK0 MASK1 MASK1 MASK2 MASK3 TRGB TRGA Reserved Reserved INT1INT1 TBI r0 r1 r2 r3 r4 Reset by system reset and program instruction IL0 IL1 IL2 IL3 IL4 INT0 r5 IL5 Priority checker Reset by system reset and program instruction Set by program instruction EI Interrupt request Entry address generator Interrupt entry address Interrupt controller: IL0-IL5 : Interrupt latch . Hold all interrupt requests from all interrupt sources. ILr can not be set by program, but can be reset by program or system reset, so IL only can decide which interrupt source can be accepted. MASK0-MASK3 : MASK register can promit or inhibit all interrupt sources. EI : Enable interrupt Flip-Flop can promit or inhibit all interrupt sources, when interrupt happened, EI is cleared to "0" automatically, after RTI instruction happened, EI will be set to "1" again . Priority checker: Check interrupt priority when multiple interrupts happened. INTERRUPT FUNCTION The procedure of interrupt operation: 1. Push PC and all flags to stack. 2. Set interrupt entry address into PC. 3. Set SF= 1. 4. Clear EI to inhibit other interrupts happened. 5. Clear the IL for which interrupt source has already be accepted. 6. To excute interrupt subroutine from the interrupt entry address. 7. CPU accept RTI, restore PC and flags from stack . Set EI to accept other interrupt requests. PROGRAM EXAMPLE: To enable interrupt of "TRGA" LDIA #1100B; EXAE; set mask register "1100B" EICIL 111111B ; enable interrupt F.F. * This specification are subject to be changed without notice. 10.8.2001 15 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT POWER SAVING FUNCTION ( Sleep / Hold function ) During sleep and hold condition, CPU holds the system's internal status with a low power consumption, for the sleep mode, the system clock will be stoped in the sleep condition and system need a warm up time for the stability of system clock running after wakeup . In the other way, for the hold mode, the system clock does not stop at all and it does not need a warm-up time any way. The sleep and hold mode is controlled by Port 16 and released by P0(0..3)/WAKEUP0..3. P16 3 2 WM SE 1 0 SWWT initial value :0000 WM Set wake-up release mode 0 1 Wake-up in edge release mode Reserved SWWT Set wake-up warm-up time 00 01 10 11 217 /XIN 213 /XIN 215 /XIN Hold mode SE Enable sleep/hold 0 Reserved 1 Enable sleep / hold rnode Sleep and hold condition: 1. Osc stop ( sleep only ) and CPU internal status held . 2. Internal time base clear to "0". 3. CPU internal memory ,flags, register, I/O held original states. 4. Program counter hold the executed address after sleep release. Release condition: 1. Osc start to oscillating.(sleep only). 2. Warm-up time passing ( sleep only ). 3. According PC to execute the following program. There is one kind of sleep/hold release mode . 1. Edge release mode: Release sleep/hold condition by the falling edge of any one of P0(0..3)/WAKEUP0..3. Note : There are 4 independent mask options for wakeup function in EM73360. So, the wakeup function of P0(0..3)/WAKEUP0..3 are enabled or disabled inpendently. LCD DRIVER EM73361A can directly drive the liquid crystal display (LCD) and has 27 segment, 3 common output pins. There are total 27 x 3 dots can be display. The VDD, VEE and VSS pins are the bias voltage inputs of the LCD driver. The VA and VB are used to the voltage double for 3V system. The method of LCD programming is I/O mapping. CONTROL OF LCD DRIVER The LCD driver control command register is P27. When LDC is 00, the LCD is disabled. When LDC is 01, the LCD is blanking, * This specification are subject to be changed without notice. 10.8.2001 16 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT the COM pins are inactive and the SEG pins continously output the display data. When LDC is 11, the LCD driver enables, the power swich is turned on and it cannot be turned off forever except the CPU is reseted or sleeping. Users must enable the LCD driver by self when the CPU is waked up. Port27 3 2 LDC LDC 0 0 0 1 1 0 1 1 1 0 Initial value : 0000 DUTY LCD display control LCD display disable & change duty Blanking Reserved LCD display enable DUTY 0 0 0 1 1 0 1 1 Driving method select Reserved 1/3 duty (1/2 bias) 1/2 duty (1/2 bias) Static LCD driving methods There are four kinds of driving methods can be selected by DUTY (P27.0~P27.1). The driving waveforms of LCD driver are as below : 1/3 duty (1/2 bias) C C O O M M 0 1 C O M 2 1/2duty (1/2 bias) Static COM0 COM1 SEG0 SEG1 COM2 SEG2 : ON OFF SEG0 SEG0-COM0 ON SEG0-COM1 OFF Frame Frame Frame LCD Frame frequency : According to the drive method to set the frame frequency. Driving method 1/3 duty 1/2 duty Static Frame frequency (Hz) 43 x (3/3) = 43 43 x (3/2) = 64 43 The relation between LCD display data and driving method Driving method 1/3 duty 1/2 duty Static bit3 - bit2 COM2 - bit1 COM1 COM1 - bit0 COM0 COM0 COM0 LCD drive voltage EM73361A provides 2 kinds of LCD bias methods, capacitor divider and resistor divider, when the LCD bias method is capacitor divider,the VA is connected a capacitor to VB and the VEE is connected a capacitor to VSS. The output of VEE is 1.5V for LCD bias voltage. When the LCD bias method is resistor divider, the VA, VB and VEE are floating. * This specification are subject to be changed without notice. 10.8.2001 17 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT • Capacitor divider VA VEE • Resistor divider 1.5V VA VEE 0.1F VDD VB VSS VDD 3V VB VSS 3V LCD DISPLAY OPERATION The LCD programming method is I/O mapping and P10~P12 are must be used. Address register of LCD display buffer It is a 5-bit register to specify address for LCD display buffer. Port11 3 Port10 2 1 0 3 A4 2 A3 A2 1 0 A1 A0 Initial value :0000 0000 Data register of LCD display buffer P12 is a 3-bit data register to read or write LCD display buffer. Port12 3 2 1 0 D2 D1 D0 Initial value : 0000 TONE GENERATOR tone EM73361A has a built-in tone generator. It is a binary down counter. When the CPU is reseted or sleeping, the generator is disabled and the output (P4.0/TONE) is high. P30.0 P23, P24 Tone generator XIN fo High Output control TONE TONE Tone generator command register Port30 3 * 2 * 1 * 0 SM Initial value : 0000 SM Sound generator mode 0 Tone generator disable 1 Tone generator enable * This specification are subject to be changed without notice. 10.8.2001 18 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT Tone frequency register The 8-bit tone frequency register is P24 and P23. The tone frequency will be changed when user output the different data to P23. Thus, the data must be output to P24 before P23 when user want to change the 8-bit tone frequency (TF). Port24 3 Port23 2 1 0 3 Higher nibble register 2 1 0 Initial value : 1111 1111 Lower nibble register ** f1=XIN/(TF+1), TF=1~255, TF≠0 ** Example : XIN=32K Hz, TF=00110001B. ⇒ fo=32K Hz/50=655.36 Hz WATCH-DOG-TIMER (MASK OPTION) Watch-dog-timer can help user to detect the malfunction (runaway) of CPU and give system a time up signal every certain time . User can use the time up signal to give system a reset signal when system is fail. When CPU is reseted or sleeping, the watch-dog-timer is disabled. Users must enable the watch-dog-timer by self when CPU is waked up. The basic structure of watch-dog-timer control is composed by a 4-stage binary counter and a control unit . the WDT counter counts for a certain time to check the CPU status, if there is no malfunction happened, the counter will be cleared and counting . Otherwise, if there is a malfunction happened, the WDT control will send a WDT signal ( low active ) to outside, user can use this signal to reset CPU . The WDT checking period is assign by P21 ( WDT command port ) WDT counter fc/213 0 1 2 3 counter clear request WDT CONTROL system reset P21 WDT command PORT P4.1 OUTPUT DATA F/F R Q S P4.1 P4.1 OUTPUT DATA LATCH P21 is the control port of watchdog timer, and the watchdog timer timeup signal is output by P4.1/WDT, user can use this timeup signal (active low) to reset CPU and initialize system. Port 21 3 2 1 0 Initial value :0000 CWC CWC 0 1 WDT 0 1 * * WDT Clear watchdog timer counter Clear counter then return to 1 Nothing Set watchdog timer detect time 3 x 213/fc=3 x 213/32 KHz=0.75 sec 7 x 213/fc=7 x 213/32K Hz=1.75 sec * This specification are subject to be changed without notice. 10.8.2001 19 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT PROGRAM EXAMPLE To enable WDT with 3 x 213/fc detection ftime. LDIA #0000B OUTA P21; set WDT detection time and clear WDT counter RESETTING FUNCTION When CPU in normal working condition and RESET pin holds in low level for three instruction cycles at least, then CPU begins to initialize the whole internal states, and when RESET pin changes to high level, CPU begins to work in normal condition. The CPU internal state during reset condition is as following table : Hardware condition in RESET state Program counter Status flag Interrupt enable flip-flop ( EI ) MASK0 ,1, 2, 3 Interrupt latch ( IL ) P10, 11, 12, 16, 21, 25, 27, 28, 29, 30 P4, 5, 6, 7, 23, 24 XIN Initial value 000h 01h 00h 00h 00h 00h 0Fh Start oscillation The RESET pin is a hysteresis input pin and it has a pull-up resistor available by mask option. The simplest RESET circuit is connect RESET pin with a capacitor to VSS and a diode to VDD. RESET * This specification are subject to be changed without notice. 10.8.2001 20 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT EM73361A I/O PORT DESCRIPTION : Port 0 E 1 2 3 4 E Input function Input port , wakeup function ---Input port 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Input port Input port Input port --------- E E E Output function E E E E I I I I I I I I I I I I ---Output port, P4.0/TONE,P4.1/WDT, P4(2..3) /SEG(26..25) P5(0..3)/SEG(24..21) P6(0..3)/SEG(20..17) P7(0..3)/SEG(16..13) --Address register of LCD display buffer Address register of LCD display buffer Data register of LCD display buffer ---Sleep/Hold mode control register ----Watch-dog-timer control register -Sound effect frequency register Sound effect frequency register Timebase control register -LCD control register Timer/counter A control register Timer/counter B control register Sound effect command register -- * This specification are subject to be changed without notice. Note low nibble high nibble low nibble high nibble 10.8.2001 21 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT ABSOLUTE MAXIMUM RATINGS Items Supply Voltage Input Voltage Output Voltage Power Dissipation Operating Temperature Storage Temperature Sym. V DD V IN VO PD T OPR T STG Ratings Conditions -0.5V to 6V -0.5V to VDD+0.5V -0.5V to VDD+0.5V 200mW 0oC to 50oC -55oC to 125oC TOPR=50oC RECOMMENDED OPERATING CONDITIONS Items Supply Voltage Input Voltage Sym. VDD VIH VIL Ratings 2.2V to 3.6V 0.9xVDD to VDD 0V to 0.10xVDD * This specification are subject to be changed without notice. Conditions Fc=32KHz 10.8.2001 22 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT DC ELECTRICAL CHARACTERISTICS (VDD=3.0±0.3V, VSS=0V, TOPR=25oC) Min. Typ. Max. Unit Conditions Parameters Sym. Supply current Hysteresis voltage I DD Input current V HYS+ V HYSI IH Output voltage I IL V OH Leakage current Input resistor LCD bias voltage COM, SEG pins output current V OL I LO R IN V EE V 01 V 02 V 03 - 10 20 µA - 30 60 µA 0.50VDD 0.20VDD -30 2.4 50 5 0.1 20 -20 -320 - 85 8 1 0.75VDD 0.40VDD 30 1 -500 - µA µA µA V V µA µA µA µA V 2.0 - - V 30 70 0.3 1 110 1 /2VDD-0.1 VDD-0.1 VEE-0.1 - 1 /2VDD VDD VEE VSS V µA KΩ 1 /2VDD+0.1 V V VEE+0.1 V VSS+0.1 V % Frequency stability - 20 Frequency variation - 20 - % - 1.5 1.8 - V V LVR reset voltage LVR reset release voltage V LVR V RLVR * This specification are subject to be changed without notice. VDD=3.3V, Cap. divider, no load, no LVR, Fc=32KHz VDD=3.3V, Res. divider, no load, no LVR, Fc=32KHz VDD=3.3V, no load, with LVR, Fc=32KHz VDD=3.3V, Hold mode, no LVR VDD=3.3V, sleep mode, no LVR RESET, P0 Port0, Pull-down, VIH=VDD Port0, Pull-up, VIH=VSS Port0, None Push-pull , VDD=3.3V, VIL=0.4V, except P4.0, TONE Push-pull, P4.0(high current PMOS), TONE, VDD=2.7V,IOH=-1mA Push-pull, P4.0(low current PMOS), VDD=2.7V, IOH=-60µA VDD=2.7V, IOL=1mA Open-drain.VDD=3.3V, VO=3.3V RESET Voltage halfer I01=-5µA, Cap. divider I02=±5µA, Cap. divider I03=5µA, Cap. divider Fc=32KHz, RC osc, R=750KΩ, [F(3.0V)-F(2.7V)]/F(3.0V) Fc=32KHz, VDD=3.0V,RC osc, R=750KΩ, [F(typical)-F(worse case)]/F(typical) 10.8.2001 23 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT RESET PIN TYPE TYPE RESET-A RESET mask option INPUT PIN TYPE TYPE INPUT-H TYPE INPUT-J WAKEUP function mask option WAKEUP function mask option input data special function control input : mask option : mask option OSCILLATION PIN TYPE TYPE OSC-A TYPE OSC-F XIN XIN RC Osc. (inverter) Crystal Osc. XOUT * This specification are subject to be changed without notice. XOUT 10.8.2001 24 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT I/O PIN TYPE TYPE I/O TYPE I/O-D path B Input data path A mask option TYPE I/O MUX Output data latch Output data special function control output TYPE I/O-N TYPE I/O-O path B Input data path A TYPE I/O : mask option Output data latch Output data : mask option Special function output TYPE I/O-P Input data path B path A TYPE I/O Special function output Path A : Path B : Output data latch Output data : mask option For set and clear bit of port instructions, data goes through path A from output data latch to CPU. For input and test instructions, data from output pin go through path B to CPU and the output data latch will be set to high. * This specification are subject to be changed without notice. 10.8.2001 25 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT APPLICATION CIRCUIT VBAT VBAT 0.1µF VDD 3V SEG0~ SEG12 COM0~ COM2 P0.0 P0.1 LCD PANNEL VA P0.2 0.1µF VB Capacitor driver VEE Resistor driver VEE TONE Buzzer P4.0/TONE RESET 0.1µF X'tal osc type XIN RESET 20P XOUT 32.768KHz 20P VSS RC osc type EM73361A XOUT XIN * This specification are subject to be changed without notice. 10.8.2001 26 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 P7.3 P7.2 P7.1 PAD DIAGRAM 46 45 44 43 42 41 40 39 38 37 36 35 34 SEG2 1 33 P7.0 SEG1 2 32 P6.3 SEG0 3 31 P6.2 COM1 4 30 P6.1 COM0 5 29 P6.0 6 28 P5.3 VEE VB 7 27 P5.2 P5.1 8 26 VA XIN 25 P5.0 9 24 P4.3 23 P4.2 22 COM2 21 TEST (0,0) X EM73361A P0.0 P0.1 16 17 18 19 20 P4.1 15 P4.0 14 TONE 13 P0.3 12 P0.2 11 RESET ELAN VDD 10 VSS XOUT Y Chip Size : 1710 µm x 1910 µm PadNo. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Symbol SEG2 SEG1 SEG0 COM1 COM0 VEE VB VA XIN XOUT VSS VDD RESET P0.0 P0.1 P0.2 P0.3 X -685.5 -685.5 -685.5 -685.5 -685.5 -685.5 -685.5 -685.5 -685.5 -685.5 -522.3 -409.3 -296.3 -185.9 -71.9 38.6 152.6 * This specification are subject to be changed without notice. Y 583.8 473.3 362.9 252.4 141.9 31.5 -79.0 -189.4 -299.9 -639.3 -785.5 -785.5 -785.5 -785.5 -785.5 -785.5 -785.5 10.8.2001 27 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT PadNo. Symbol X Y 18 TONE 263.0 -785.5 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 P4.0 P4.1 TEST COM2 P4.2 P4.3 P5.0 P5.1 P5.2 P5.3 P6.0 P6.1 P6.2 P6.3 P7.0 P7.1 P7.2 P7.3 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 373.5 483.9 685.5 685.5 685.5 685.5 685.5 685.5 685.5 685.5 685.5 685.5 685.5 685.5 685.5 662.4 552.0 441.5 331.1 220.6 110.1 -0.3 -110.8 -221.2 -331.7 -442.2 -552.6 -663.1 -785.5 -785.5 -741.7 -631.3 -520.8 -410.4 -299.9 -189.4 -79.0 31.5 141.9 252.4 362.9 473.3 583.8 785.4 785.4 785.4 785.4 785.4 785.4 785.4 785.4 785.4 785.4 785.4 785.4 785.4 Note : For PCB llayout, IC substrate must be floated or connect to VSS. * This specification are subject to be changed without notice. 10.8.2001 28 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT INSTRUCTION TABLE (1) Data Transfer Mnemonic LDA x LDAM LDAX LDAXI LDH #k LDHL x LDIA #k LDL #k STA x STAM STAMD STAMI STD #k,y STDMI #k THA TLA Object code ( binary ) Operation description Byte 0110 1010 xxxx xxxx 0101 1010 0110 0101 0110 0111 1001 kkkk 0100 1110 xxxx xx00 1101 kkkk 1000 kkkk 0110 1001 xxxx xxxx 0101 1001 0111 1101 0111 1111 0100 1000 kkkk yyyy 1010 kkkk 0111 0110 0111 0100 Acc←RAM[x] Acc ←RAM[HL] Acc←ROM[DP]L Acc←ROM[DP]H,DP+1 HR←k LR←RAM[x],HR←RAM[x+1] Acc←k LR←k RAM[x]←Acc RAM[HL]←Acc RAM[HL]←Acc, LR-1 RAM[HL]←Acc, LR+1 RAM[y]←k RAM[HL]←k, LR+1 Acc←HR Acc←LR 2 1 1 1 1 2 1 1 2 1 1 1 2 1 1 1 Object code ( binary ) Operation description Byte Cycle 2 1 2 2 1 2 1 1 2 1 1 1 2 1 1 1 C - Flag Z Z Z Z Z Z Z Z Z Z Z C C C Flag Z Z Z S C' C' C C - Flag Z Z Z Z Z Z Z Z Z Z Z Z S C' C' C' C' C' C' C' C C C C' 10.8.2001 29 S 1 1 1 1 1 1 1 1 1 1 C C' 1 C' 1 1 (2) Rotate Mnemonic RLCA RRCA 0101 0000 0101 0001 ←CF←Acc← →CF→Acc→ 1 1 Cycle 1 1 (3) 3) Arithmetic operation Mnemonic Object code ( binary ) Operation description Byte ADCAM ADD #k,y ADDA #k ADDAM ADDH #k ADDL #k ADDM #k DECA DECL DECM INCA 0111 0100 0110 0111 0110 0110 0110 0101 0111 0101 0101 Acc←Acc + RAM[HL] + CF RAM[y]←RAM[y] +k Acc←Acc+k Acc←Acc + RAM[HL] HR←HR+k LR←LR+k RAM[HL]←RAM[HL] +k Acc←Acc-1 LR←LR-1 RAM[HL]←RAM[HL]-1 Acc←Acc + 1 1 2 2 1 2 2 2 1 1 1 1 0000 1001 kkkk yyyy 1110 0101 kkkk 0001 1110 1001 kkkk 1110 0001 kkkk 1110 1101 kkkk 1100 1100 1101 1110 * This specification are subject to be changed without notice. Cycle 1 2 2 1 2 2 2 1 1 1 1 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT INCL INCM SUBA #k SBCAM SUBM #k 0111 1110 0101 1111 0110 1110 0111 kkkk 0111 0010 0110 1110 1111 kkkk LR←LR + 1 RAM[HL]←RAM[HL]+1 Acc←k-Acc Acc←RAM[HLl - Acc - CF' RAM[HL]←k - RAM[HL] 1 1 2 1 2 1 1 2 1 2 C - Z Z Z Z Z C' C' C C C (4) Logical operation Object code ( binary ) Operation description Byte ANDA #k ANDAM ANDM #k ORA #k ORAM ORM #k XORAM 0110 0111 0110 0110 0111 0110 0111 Acc←Acc&k Acc←Acc & RAM[HL] RAM[HL]←RAM[HL]&k Acc←Acc k Acc ←Acc RAM[HL] RAM[HL]←RAM[HL] k Acc←Acc^RAM[HL] 2 1 2 2 1 2 1 -- 1110 0110 kkkk 1011 1110 1110 kkkk 1110 0100 kkkk 1000 1110 1100 kkkk 1001 ---- Mnemonic Cycle 2 1 2 2 1 2 1 Flag C Z Z Z Z Z Z Z Z S Z' Z' Z' Z' Z' Z' Z' (5) Exchange Mnemonic Object code ( binary ) Operation description Byte EXA x EXAH EXAL EXAM EXHL x 0110 1000 xxxx xxxx 0110 0110 0110 0100 0101 1000 0100 1100 xxxx xx00 Acc↔RAM[x] Acc↔HR Acc↔LR Acc↔RAM[HL] LR↔RAM[x], HR↔RAM[x+1] 2 1 1 1 2 Cycle Flag C Z S 2 2 2 1 - Z Z Z Z 1 1 1 1 2 - - 1 Flag C Z S (6) Branch Mnemonic Object code ( binary ) Operation description Byte Cycle SBR a 00aa aaaa 1 1 - - 1 LBR a 1100 aaaa aaaa aaaa If SF=1 then PC←PC11-6.a5-0 else null If SF= 1 then PC←a else null 2 2 - - 1 Operation description Byte C Flag Z S C C C C - Z Z Z Z Z Z Z' Z' Z' C Z' C (7) Compare Mnemonic CMP #k,y CMPA x CMPAM CMPH #k CMPIA #k CMPL #k Object code ( binary ) 0100 1011 kkkk yyyy 0110 1011 xxxx xxxx 0111 0011 0110 1110 1011 kkkk 1011 kkkk 0110 1110 0011 kkkk k-RAM[y] RAM[x]-Acc RAM[HL] - Acc k - HR k - Acc k-LR * This specification are subject to be changed without notice. 2 2 1 2 1 2 Cycle 2 2 1 2 1 2 10.8.2001 30 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT (8) Bit manipulation Mnemonic Object code ( binary ) Operation description Byte CLM CLP CLPL CLR SEM SEP SEPL SET TF TFA TFM TFP TFPL TT TTP 1111 00bb 0110 1101 11bb pppp 0110 0000 0110 1100 11bb yyyy 1111 01bb 0110 1101 01bb pppp 0110 0010 0110 1100 01bb yyyy 0110 1100 00bb yyyy 1111 10bb 1111 11bb 0110 1101 00bb pppp 0110 0001 0110 1100 10bb yyyy 0110 1101 10bb pppp RAM[HL]b←0 PORT[p]b←0 PORT[LR3-2+4]LR1-0←0 RAM[y]b←0 RAM[HL]b←1 PORT[p]b←1 PORT[LR3-2+4]LRl-0←1 RAM[y]b←1 SF←RAM[y]b' SF←Accb' SF←RAM[HL]b' SF←PORT[p]b' SF←PORT[LR3-2+4]LR1-0' SF←RAM[y]b SF←PORT[p]b 1 2 1 2 1 2 1 2 2 1 1 2 1 2 2 Object code ( binary ) Operation description Byte b p,b y,b b p,b y,b y,b b b p,b y,b p,b Cycle 1 2 2 2 1 2 2 2 2 1 1 2 2 2 2 C - Flag Z - S 1 1 1 1 1 1 1 1 * * * * * * * Flag Z - S - (9) Subroutine Mnemonic Cycle 2 2 1 2 - - - 0100 1111 STACK[SP]←PC, SP←SP -1, PC←a STACK[SP]←PC, SP←SP - 1, PC←a,a = 8n + 6 (n =1∼15),0086h (n = 0) SP←SP + 1, PC←STACK[SP] C - 1 2 - - - Mnemonic Object code ( binary ) Operation description Byte INA INM OUT OUTA OUTM 0110 1111 0100 pppp 0110 1111 1100 pppp 0100 1010 kkkk pppp 0110 1111 000p pppp 0110 1111 100p pppp Acc←PORT[p] RAM[HL]←PORT[p] PORT[p]←k PORT[p]←Acc PORT[p]←RAM[HL] 2 2 2 2 2 LCALL a 0100 0aaa aaaa aaaa SCALL a 1110 nnnn RET (10) Input/output p p #k,p p p Cycle 2 2 2 2 2 Flag Z Z - S Z' Z' 1 1 1 Flag C Z - S 1 1 10.8.2001 31 C - (11) Flag manipulation Mnemonic Object code ( binary ) Operation description Byte CGF SGF 0101 0111 0101 0101 GF←0 GF←1 1 1 * This specification are subject to be changed without notice. Cycle 1 1 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT TFCFC TGS TTCFS TZS 0101 0011 0101 0100 0101 0010 0101 1011 SF←CF', CF←0 SF←GF SF←CF, CF←1 SF←ZF 1 1 1 1 1 1 1 1 0 1 - - * * * * (12) Interrupt control Mnemonic Object code ( binary ) Operation description Byte CIL r DICIL r EICIL r EXAE RTI 0110 0011 11rr rrrr 0110 0011 10rr rrrr 0110 0011 01rr rrrr 0111 0101 0100 1101 IL←IL & r EIF←0,IL←IL&r EIF←1,IL←IL&r MASK↔Acc SP←SP+1,FLAG.PC ←STACK[SP],EIF ←1 2 2 2 1 1 Mnemonic Object code ( binary ) Operation description Byte NOP 0101 0110 no operation 1 Cycle 2 2 2 1 2 Flag C Z * * S 1 1 1 1 * Flag C Z - S - Flag C Z Z Z Z Z Z Z Z Z Z Z - S 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 10.8.2001 32 (13) CPU control Cycle 1 (14) Timer/Counter & Data pointer & Stack pointer control Mnemonic Object code ( binary ) Operation description Byte LDADPL LDADPM LDADPH LDASP LDATAL LDATAM LDATAH LDATBL LDATBM LDATBH STADPL STADPM STADPH STASP STATAL STATAM STATAH STATBL STATBM STATBH 0110 1010 1111 1100 0110 1010 1111 1101 0110 1010 1111 1110 0110 1010 1111 1111 0110 1010 1111 0100 0110 1010 1111 0101 0110 1010 1111 0110 0110 1010 1111 1000 0110 1010 1111 1001 0110 1010 1111 1010 0110 1001 1111 1100 0110 1001 1111 1101 0110 1001 1111 1110 0110 1001 1111 1111 0110 1001 1111 0100 0110 1001 1111 0101 0110 1001 1111 0110 0110 1001 1111 1000 0110 1001 1111 1001 0110 1001 1111 1010 Acc←[DP]L Acc←[DP]M Acc←[DP]H Acc←SP Acc←[TA]L Acc←[TA]M Acc←[TA]H Acc←[TB]L Acc←[TB]M Acc←[TB]H [DP]L←Acc [DP]M←Acc [DP]H←Acc SP←Acc [TA]L←Acc [TA]M←Acc [TA]H←Acc [ TB]L←Acc [TB]M←Acc [TB]H←Acc 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 * This specification are subject to be changed without notice. Cycle 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 EM73361A 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT **** SYMBOL DESCRIPTION Symbol Description Symbol HR PC SP ACC CF SF EI MASK ΤΑ RAM[HL] ROM[DP]L [DP]L [DP]H H register Program counter Stack pointer Accumulator Carry flag Status flag Enable interrupt register Interrupt mask Timer/counter A Data memory (address : HL ) Low 4-bit of program memory Low 4-bit of data pointer register High 4-bit of data pointer register LR DP STACK[SP] FLAG ZF GF IL PORT[p] ΤΒ RAM[x] ROM[DP]H [DP]M [TA]L([TB]L) [TA]M([TB]M) Middle 4-bit of timer/counter A (timer/counter B) register Transfer Addition Logic AND Logic XOR Concatenation 8-bit RAM address 4-bit or 5-bit port address 6-bit interrupt latch Contents of bit assigned by bit 1 to 0 of LR Bit 3 to 2 of LR [TA]H([TB]H) LR 1-0 LR3-2 ↔ -- ← + & ^ . x p r ' #k y b PC11-6 a5-0 * This specification are subject to be changed without notice. Description L register Data pointer Stack specified by SP All flags Zero flag General flag Interrupt latch Port ( address : p ) Timer/counter B Data memory (address : x ) High 4-bit of program memory Middle 4-bit of data pointer register Low 4-bit of timer/counter A (timer/counter B) register High 4-bit of timer/counter A (timer/counter B) register Exchange Substraction Logic OR Inverse operation 4-bit immediate data 4-bit zero-page address Bit address Bit 11 to 6 of program counter Bit 5 to 0 of destination address for branch instruction 10.8.2001 33