Iret Interrupt Return, Flags ← @SP PC ↔ IP | Samsung S3C84E5

INSTRUCTION SET	S3C84E5/C84E9/P84E9

IRET — Interrupt Return

IRET	IRET (Normal)	RET (Fast)
Operation:	FLAGS ← @SP	PC ↔ IP
	SP ← SP + 1	FLAGS ← FLAGS'
	PC ← @SP	FIS ← 0
	SP ← SP + 2
	SYM(0) ← 1
	This instruction is used at the end of an interrupt service routine. It restores the flag register and the
	program counter. It also re-enables global interrupts. A "normal IRET" is executed only if the fast
	interrupt status bit (FIS, bit one of the FLAGS register, 0D5H) is cleared (= "0"). If a fast interrupt
	occurred, IRET clears the FIS bit that was set at the beginning of the service routine.
Flags:	All flags are restored to their original settings (that is, the settings before the interrupt occurred).

Format:
IRET	Bytes	Cycles	Opcode
(Normal)			(Hex)

opc

1 12 BF

IRET (Fast)

opc

Bytes Cycles Opcode (Hex)

1 6BF

Example: In the figure below, the instruction pointer is initially loaded with 100H in the main program before interrupt are enabled. When an interrupt occurs, the program counter and the instruction pointer are swapped. This causes the PC to jump to the address 100H and the IP to keep the return address. The last instruction in the service routine is normally a jump to IRET at the address FFH.

This loads the instruction pointer with 100H "again" and causes the program counter to jump back to the main program. Now, the next interrupt can occur and the IP is still correct at 100H.

0H
FFH	IRET

100H	Interrupt
	Service
	Routine

	JP to FFH
FFFFH

NOTE:In the fast interrupt example above, if the last instruction is not a jump to IRET, you must pay attention to the order of the last tow instruction. The IRET cannot be immediately proceeded by an instruction which clears the interrupt status (as with a reset of the IPR register).

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Samsung S3C84E5 user manual Iret Interrupt Return, Flags ← @SP PC ↔ IP, Flags ← Flags, Bytes Cycles Opcode Normal Hex

Contents

Page Low Voltage Reset FeaturesBuilt-in Reset circuit LVR Errata VER BGR ResetVDD Parameter Symbol Conditions Min Typ Max Unit D.C. Electrical Characteristics Pull-up resistor VDD = 4.5V to RUN mode MHz CPU clock VDD = Vlvr to 5.5 Main Oscillator Frequency A.C. Electrical CharacteristicsMain Oscillator Clock Stabilization TimePAGE Sub Oscillator Frequency 10. Uart Timing Characteristics in Mode 0 Data Retention Supply Voltage in Stop ModeParameter Symbol Min Typ Max Unit Oscillator Test Condition Min Typ Max Unit 12. LVR Low Voltage Reset Circuit Characteristics 11. A/D Converter Electrical CharacteristicsComparison of S3P84E9 and S3C84E5/C84E9 Features Operating Voltage RangePAGE S3C84E5/C84E9/P84E9 Important Notice Iii Part Programming ModelUart Table of Contents Overview Chapter Interrupt Structure Vii Part II Hardware Descriptions Viii Chapter HEX2ROM Title Number List of Figures 10-4 10-211-8 Xii 12-5 12-413-3 13-7 17-11 17-2 Xvi Chapter Bit Timer 10,1 Chapter Bit Timer A/BChapter Watch Timer Chapter Converter Configuring A/D Converter 15-6 Register Full Register Name Identifier Number Instruction Full Register Name Mnemonic Number LDCD/LDED LDC/LDELDCI/LDEI LDCPD/LDEPD S3C84E5/C84E9/P84E9 Microcontroller Product OverviewS3C8-SERIES Microcontrollers CPU Features S3C84E5/C84E9/P84E9 Block Diagram Block Diagram PIN Assignment NRESETTop View 44-QFP S3C84E9 S3C84E5S3P84E9 Sdip S3C84E5/C84E9/P84E9 Pin Descriptions Circuit Share Type Description Number PinsPIN Descriptions AVREF, Avss INT0-INT10BUZ Test PIN Circuits Pin Circuit Type B nRESET Pin Circuit Type D P0.2-P0.7, P1, P4.3-P4.5 Pin Circuit Type E P3 Overview Address Spaces 0FFH Program Memory ROMHEX S3C84E5/C84E9/P84E9 Register Type Summary Number of Bytes Register ArchitectureTotal Addressable Bytes 590 Page01 PagePage00 Set Set1 Bank MSB LSB Register page Pointer PP RAMCL0 CLR SRPDjnz R0,RAMCL0 CLR RAMCL1 CLR Register SET FFH F0H E0H D0H C0H Prime Register SpaceSet Bank C0H BFH F7H Working RegistersF8H Programming TIP Setting the Register Pointers Using the Register PointersSRP1 SRP0 R0,R1 ← R0 + R1 #80H RP0 ← 80HR0,R2 + R2 + C Bit Register Pair Register Addressing Control Registers System FFH E0H D0H C0H BFHRegister Pointers Prime Registers RP1 → C8H-CFH Common Working Register Area C0H-CFHFFH F0H E0H D0H C0H BFH Examples Programming TIP Addressing the Common Working Register AreaExample BIT Working Register Addressing R6 Opcode RP0 RP1 13 -Bit Working Register Addressing 14 -Bit Working Register Addressing Example Stack Operations System and User StackStack Pointers SPL, SPH High Address Push RP0 SPL,#0FFH SPL ← FFHPush RP1 POP RP1 Addressing Modes Opcode Register Addressing Mode RDEC Cntr Operand @SHIFT Indirect Register Addressing Mode IRAddress Call @RR2 JP @RR2 Indirect Register Addressing ModeRegister Pair Indirect Working Register Addressing to Register File LDE LCD Index Indexed Addressing Mode LDC Indexed Addressing ModeOffset Indexed Addressing to Program or Data Memory 10. Direct Addressing for Load Instructions Direct Address Mode DA Call Display Direct Address ModeJOB1 Call #40H Indirect Address Mode IA ULT,$+OFFSET Relative Address Mode RA LD R0,#0AAH Immediate Mode IMOperand Opcode Set 1 Registers Register Name Mnemonic Decimal Hex Control Registers Set 1, Bank 0 Registers Register Name Mnemonic Decimal Hex Set 1, Bank 1 Registers Register Name Mnemonic Decimal Hex Mode Carry Flag C Bit Identifier Reset Value Read/Write Bit AddressingZero Flag Z Sign Flag S Adcon A/D Converter Control Register F7H Set 1, Bank D3H Btcon Basic Timer Control Register D4H Clkcon System Clock Control RegisterCPU Clock System Clock Selection Bits note Fxx/2 D5H Flags System Flags Register DDH IMR Interrupt Mask Register DAH IPH Instruction Pointer High ByteIPL Instruction Pointer Low Byte DBH FFH IPR Interrupt Priority Register DCH IRQ Interrupt Request Register Sub-system Oscillator Driving Ability Control Bit Osccon Oscillator Control Register FBH Set 1, BankMain System Oscillator Control Bit Sub System Oscillator Control Bit P0.6/TACK Configuration Bits P0.7/TACAP Configuration BitsP0.5/T1CAP0 Configuration Bits P0.4/T1OUT1 Configuration Bits P0.2/T1CAP1 Configuration Bits P0.3/T1CK1 Configuration BitsP0.1/XTout Configuration Bits P0.0/XTin Configuration Bits P1CONH Port 1 Control Register High Byte E8H Set 1, Bank P1.5/TXD Configuration BitsP1.4/RXD Configuration Bits P1.2/T1OUT0 Configuration Bits P1.3/BZOUT Configuration BitsP1.1/T1CK0 Configuration Bits P1.0/TAOUT Configuration Bits P2.7/INT7 P2CONH Port 2 Control Register High Byte EAH Set 1, BankP2.6/ INT6 P2.5/ INT5 P2.3/INT3 P2CONL Port 2 Control Register Low Byte EBH Set 1, BankP2.2/INT2 P2.1/INT1 ECH P2INT Port 2 Interrupt Control Register EDH P2INTPND Port 2 Interrupt Pending Register P3.7/ADC7 P3CONH Port 3 Control Register High Byte EEH Set 1, Bank4P3.6/ADC6 2P3.5/ADC5 P3.3/ADC3 P3CONL Port 3 Control Register Low Byte EFH Set 1, Bank4P3.2/ADC2 3P3.1/ADC1 P4CONH Port 4 Control Register High Byte F0H Set 1, Bank Input mode Push-pull output modeP4.5 P4.4 P4.3/TBPWM P4CONL Port 4 Control Register Low Byte F1H Set 1, BankP4.2/INT10 P4.1/INT9 P4.1 External Interrupt INT9 Enable Bit P4.2 External Interrupt INT10 Enable BitP4.0 External Interrupt INT8 Enable Bit P4INT Port 4 Interrupt Control Register F3H P4INTPND Port 4 Interrupt Pending RegisterP4.2/PND10 Interrupt Pending Bit P4.1/PND9 Interrupt Pending Bit DFH PP Register Page PointerDestination Register Page Selection Bits Source Register Page Selection Bits D6H RP0 Register PointerRP1 Register Pointer D7H D8H SPH Stack Pointer High ByteSet SPL Stack Pointer Low Byte Stop Control Bits Stpcon Stop Control Register E5H Set 1, Bank Fast Interrupt Enable Bit SYM System Mode RegisterGlobal Interrupt Enable Bit note DEH T1CON0 Timer 10 Control Register E8H Set 1, Bank T1CON1 Timer 11 Control Register E9H Set 1, Bank Tacon Timer a Control Register E1H Set 1, Bank D0H Tbcon Timer B Control Register Tintpnd Timer A, Timer 1 Interrupt Pending Register E0H Serial Data Receive Enable Bit Multiprocessor Communication 1 Enable Bit for mode 2 onlyReceive Interrupt Enable Bit Transmit Interrupt Enable Bit Control Register Uartpnd Uart Pending and parity control F4H Set 1, Bank Wtcon Watch Timer Control Register FAH Set 1, Bank Levels Interrupt StructureVectors Sources Levels Type 1 IRQn Type 2 IRQn Type 3 IRQn Vectors Sources Interrupt Types S3C84E5/C84E9/P84E9 Interrupt Structure Levels Vectors Sources ResetClear HEX 7FFFH 3FFFH Interrupt Vector AddressesInterrupt Vector Area Level Interrupt Control Register Overview Function Description ENABLE/DISABLE Interrupt Instructions EI, DISYSTEM-LEVEL Interrupt Control Registers Interrupt Processing Control Points Interrupt Function Diagram Peripheral Interrupt Control Registers IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 System Mode Register SYMIRQ0 LSB IRQ1 IRQ0 IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 IRQ2 Interrupt Mask Register IMRMSB Group a Interrupt Priority Register IPRIRQ0, IRQ1 Group B IRQ2, IRQ3, IRQ4 Group C IRQ5, IRQ6, IRQ7 Interrupt Priority Register IPR Interrupt Request Register IRQ Interrupt Request Register IRQ Interrupt Pending Function Types Pending Bits Cleared by the Service RoutineOverview Pending Bits Cleared Automatically by Hardware Interrupt Source Polling Sequence Interrupt Service Routines Nesting of Vectored Interrupts Generating Interrupt Vector Addresses Data Types Instruction SETRegister Addressing Addressing Modes LDC LDELded Ldcd Logic Instructions Bit Manipulation Instructions CPU Control Instructions System Flags Register Flags Flags Register Flags Flag Descriptions Symbol Description Instruction Set SymbolsInstruction SET Notation Flag Notation Conventions IML Immediate long addressing mode #data Data =IRR Opcode MAP Lower Nibble HEX Opcode Quick Reference R1,R2 R2,R1 Djnz INC NextDjnz INC NOP Idle Condition Codes Binary Mnemonic Description Flags Set Condition Codes Instruction Descriptions ADC ADC Add with Carry ADD ADD AddFormat Bytes Cycles Opcode Logical Src Opc Band BitGiven R1 = 07H and register 01H = 05H R1,01H.1 R1 = 06H, register 01H = 05H BCP BCP Bit Compare Hex Dst Bitc Bit ComplementBitc BITRdst.b Operation dstb ← Bitr Bit Reset BITSdst.b Operation dstb ← Bits Bit Set BOR BOR Bit or PC jumps to Skip location Btjrf Bit Test, Jump Relative on FalseBtjrf SKIP,R1.3 Btjrt Btjrt Bit Test, Jump Relative on TrueIf srcb is a 1, then PC ← PC + dst Btjrt SKIP,R1.1 R1,01H.1 R1 = 06H, register 01H 03H Bxor Bit XOR Call dst Operation SP ← SP-1 Call Call Procedure@SP ← PCL @SP ← PCH CCF CCF Complement Carry FlagOperation C ← not C Format Bytes Cycles Opcode Hex 00H Register 00H CLR ClearCLRdst Operation dst ← COMdst Operation dst ← not dst COM ComplementOpc Dst Examples Given R1 = 07H and register 07H = 0F1H 0F8H CP Compare Format Bytes Cycles Opcode Addr Mode Hex Dst SrcOperation dst-src UGE,SKIP INC Skip Cpije Cpije Compare, Increment, and Jump on EqualDst,src,RA If dst-src = 0, PC Cpijne Cpijne Compare, Increment, and Jump on Non-EqualOpc Src Dst Example Given R1 = 02H, R2 = 03H, and register 03H = 04H DAdst Operation dst ← DA dst DA Decimal AdjustAfter DA ADD ADC 3CH DEC Decrement Contents of the destination operand are decremented by oneDECdst Operation dst ← dst-1 Opc Dst Examples Given R1 = 03H and register 03H = 10H Decw Decw Decrement WordDecw RR0 Loop Decw RR0 Operation SYM 0 ← DI Disable Interrupts Operation dst ÷ src DIV Divide UnsignedSet if the divisor or the quotient = 0 cleared otherwise Set if MSB of the quotient = 1 cleared otherwise SRP #0C0H Djnz R1,LOOP Djnz Decrement and Jump if Non-ZeroDJNZr,dst Operation r ¬ r SYM 0 ← EI Enable InterruptsEI instruction is executed No flags are affected Enter Enter Enter Operation IP ← @SP Exit ExitExit Idle Idle Idle Operation INCdst Operation dst ← dst + INC IncrementINC 00H 0DH INC @R0 Incw dst Operation dst ← dst + Incw Increment Word0FFH Incw RR0 Loop Incw RR0 Iret Iret Interrupt ReturnFlags ← @SP PC ↔ IP Flags ← Flags Labelw JP Jump JR C,LABELX JR Jump RelativeHex Dst CcB Cc = 0 to F Opc Dst Src = 0 to F LD LoadDst ← src LD R0,#LOOPR1 0AH= 0FFH, R1 = 0AH LD #LOOPR0,R1 LDB LDB Load BitDst Examples Given R0 = 06H and general register 00H = 05H R0,00H.2 07H, register 00H 05H LDC/LDE Load Memory Bytes Cycles Opcode Addr Mode Hex Dst SrcLDC LDE LDC/LDE R0,1104H ← contents of program memory location 1104H = 88HR0,1104H ← contents of external data memory location = 98H Operation dst ← src LDCD/LDED Load Memory and DecrementLdcd dst,src Lded dst,src Ldci LDCI/LDEI Load Memory and IncrementLdei Rr ← rr + Ldcpd dst,src Ldepd dst,src LDCPD/LDEPD Load Memory with Pre-DecrementOperation rr ← rr Irr Examples Given R0 = 77H, R6 = 30H, and R7 = 00H Ldcpi dst,src Ldepi dst,src LDCPI/LDEPI Load Memory with Pre-IncrementOperation rr ← rr + Irr Examples Given R0 = 7FH, R6 = 21H, and R7 = 0FFH LDW RR6,RR4 LDW Load Word0FH 0EDH Mult dst,src Mult Multiply UnsignedOperation dst ← dst × src 00H, @01H Register 00H 00H, register 01H 0C0H Operation PC ← @IP Next NextNext NOP NOP No Operation 00H,#02H Register 00H Or Logical or0BFH POPdst Operation dst ← @SP POP Pop from StackHex Dst Examples 0FBH 6FH Popud Pop User Stack DecrementingPopud dst,src Example Given Register 00H = 01H and register 01H = 70H Popui Pop User Stack IncrementingPopui dst,src 0FFH = 0AAH, SPH = 0FFH, SPL = 0FFH Push Push to StackPush src Operation SP ← SP Pushud Pushud Push User Stack DecrementingIR ← IR Decremented stack pointer Pushui @00H,01H Pushui Push User Stack IncrementingPushui dst,src Operation IR ← IR + Flags Cleared to RCF Reset Carry FlagRCF RET RET ReturnOperation PC ← @SP Example Given SP RLdst Operation C ← dst RL Rotate Left 00H Register 00H 54H, C = RLC Rotate Left through CarryRLCdst Operation dst 0 ← C RRdst Operation C ← dst RR Rotate Right 00H Register 00H 2AH, C = RRC Rotate Right through CarryRRCdst Operation dst 7 ← C Operation Bank ← SB0 Select BankSB0 SB1 SB1 Select Bank 0AH SBC SBC Subtract with Carry Opc 4DF Example The statement SCF sets the carry flag to SCF Set Carry FlagSCF 00H Register 00H 0CD, C = SRA Shift Right ArithmeticSRAdst SRP SRP/SRP0/SRP1 Set Register PointerSRP0 SRP1 Stop Stop Stop Operation SUB Subtract Swap dst Swap Swap NibblesOpc Dst Examples Given Register 00H Swap 00H Swap @02H R0,R1 = 0C7H, R1 = 02H, Z = TCM Test Complement under MaskR0,@R1 = 0C7H, R1 = 02H, register 02H = 23H, Z = 00H,01H Register 00H 2BH, register 01H 02H, Z = Operation dst and src TM Test under MaskTMdst,src WFI Wate for Interrupt Enable global interruptWFI Opc 4n3F R0,R1 = 0C5H, R1 = 02H XOR Logical Exclusive orR0,@R1 = 0E4H, R1 = 02H, register 02H = 23H 00H,01H Register 00H 29H, register 01H 02H System Clock Circuit Clock CircuitCrystal or Ceramic Oscillator Crystal Oscillator S3C84E5 S3C84E9 S3P84E9 System Clock Circuit Diagram Clock Status During POWER-DOWN Modes S3C84E5/C84E9/P84E9 REV.0 System Clock Control Register Clkcon Oscillator Control Register Osccon Normal Mode Reset Operation System ResetS3C84E5/C84E9/P84E9 Reset and POWER-DOWN Overview Reset and POWER-DOWN S3C84E5/C84E9/P84E9 Hardware Reset ValuesDec Hex Timer B control register Converter data registerlow byte S3C84E5/C84E9/P84E9RESET and POWER-DOWNConverter data registerhigh byte Reset and POWER-DOWNS3C84E5/C84E9/P84E9 Timer A, 1 interrupt pending registerUart baud rate data register high Uart baud rate data register low Stop Mode POWER-DOWN ModesUsing Reset to Release Stop Mode Using an External Interrupt to Release Stop Mode Idle Mode How to Enter into Stop Mode O Ports S3C84E5/C84E9/P84E9 Port Configuration OverviewPort Configuration Options Port Data Registers Port 0 Control Register P0CONH/P0CONL Port P0.2/T1CAP1 Configuration Bits P0.3/T1CK1 Configuration BitsP0.1/XTout Configuration Bits P0.0/XTin Configuration Bits Port 1 Control Register P1CONH, P1CONL P1.5/TXD Configuration BitsP1.4/RXD Configuration Bits P1.2/T1OUT0 Configuration Bits P1.3/BZOUT Configuration BitsP1.1/T1CK0 Configuration Bits P1.0/TAOUT Configuration Bits Port 2 Control Register P2CONH, P2CONL P2.6/INT6 Configuration Bits P2.7/INT7 Configuration BitsP2.5/INT5 Configuration Bits P2.4/INT4 Configuration Bits P2.2/INT2 Configuration Bits P2.3/INT3 Configuration BitsP2.1/INT1 Configuration Bits P2.0/INT0 Configuration Bits P2.6/PND6, Interrupt Pending Bit P2.7/PND7, Interrupt Pending BitP2.5/PND5, Interrupt Pending Bit P2.4/PND4, Interrupt Pending Bit P2.6 External Interrupt INT6 Enable Bit P2.7 External Interrupt INT7 Enable BitP2.5 External Interrupt INT5 Enable Bit P2.4 External Interrupt INT4 Enable Bit P3.6/ADC6 Configuration Bits P3.7/ADC7 Configuration BitsP3.5/ADC5 Configuration Bits P3.4/ADC4 Configuration Bits P3.2/ADC2 Configuration Bits P3.3/ADC3 Configuration BitsP3.1/ADC1 Configuration Bits P3.0/ADC0 Configuration Bits Port 4 Control Register P4CONH, P4CONL P4.4 Configuration Bits P4.5 Configuration BitsP4.3/TBPWM Configuration Bits P4.2/INT10 Configuration Bits P4.1 External Interrupt INT9 Enable Bit P4.2 External Interrupt INT10 Enable BitP4.0 External Interrupt INT8 Enable Bit P4.2/PND10, Interrupt Pending Bit Basic Timer BT Basic TimerBasic Timer Control Register Btcon 10-1 10-2 Basic Timer Control Register Btcon Watchdog Timer Function Basic Timer Function DescriptionOscillation Stabilization Interval Timer Function 10-3 MUX DIVOVF 10-4 11-1 11 8-BIT Timer A/BBIT Timer a Interval Timer Function Timer a Interrupts IRQ1, Vectors C0H and C2HPulse Width Modulation Mode Capture Mode 11-3 Timer a Control Register Tacon 11-4 Block Diagram 11-5 BIT Timer B 11-6 Timer B Control Register Tbcon 11-7 Timer B Pulse Width Calculations 11-8 Tbdatal = DFH Tbdatah = 1FHTbdatal = 7FH Tbdatah = 7FH ORG 0100H Reset addressStart DI P4CONLH,#03H TBDATAH,# Set 40 μs Programming TIP To generate a one pulse signal through P4.3TBDATAL,# Set any value except 00H Programming TIP Using the Timer a 0BEh,TBUNINT Programming TIP Using the Timer BMain Main Routine JRT,MAIN Tbunint 11-12 12-1 S3C84E5/C84E9/P84E9 BIT Timer 10,1 Interval Mode match Timer 10,1 Interrupts IRQ2, Vectors C4H, C6H, C8H and CAHBIT Timer 10,1 S3C84E5/C84E9/P84E9 12-2 12-3 PWM ModeTimer 10,1 Control Register T1CON0, T1CON1 12-4 Timer 10,1 Control Register T1CON0, T1CON1 12-5 Timer A, Timer 10,1 Pending Register Tintpnd 12-6 0C4h,TIM1INT Programming TIP Using the TimerT1DATAH0,#00F0h T1DATAH0=00h, T1DATAL0=F0h SB0 Main Main Routine JRT,MIAN TIM1INT 13-1 Programming ProcedureUart 13-2 Uart Control Register Uartcon 13-3 MSB MS1 MS0 MCE RE TB8 RB8 RIE TIE LSBMS1 MS0 Must keep always Uart Interrupt Pending Register UartpndAlways MSB PEN RPE RIP TIP LSB 13-5 Uart Data Register Udata 13-6 Uart Baud Rate Data Register BRDATAH, BrdatalBaud Rate Calculations Decimal Hex Brdatah Brdatal 13-8 Tx ControlRx Control Mode 0 Transmit Procedure Uart Mode 0 Function DescriptionMode 0 Receive Procedure 13-9 Mode 1 Transmit Procedure Uart Mode 1 Function DescriptionMode 1 Receive Procedure 13-10 Parity disable mode PEN = Uart Mode 2 Function DescriptionParity enable mode PEN = Mode 2 Transmit Procedure 13-12 Timing Diagram for Uart Mode 2 Operation 13-13 Serial Communication for Multiprocessor ConfigurationsSample Protocol for Master/Slave Interaction 13-14 Setup Procedure for Multiprocessor CommunicationsFull-Duplex Multi-S3C84E5/C84E9/P84E9 Interconnect 14-1 Watch Timer WTCON.7 ResetWTCON.6 WTCON.1 14-3 Watch Timer Circuit Diagram 0CCh,WTINT Programming TIP Using the Watch TimerMain Main Routine JRT,MIAN Wtint WTCON,#11111110b Pending clear 15-1 15 A/D ConverterFunction Description 15-2 Converter Control Register Adcon 15-3 Conversion Timing Internal Reference Voltage LevelsEOC Addata 15-4 15-5 Internal A/D Conversion ProcedureS3C84E5 Programming TIP Configuring A/D Converter 16-1 LOW Voltage Reset 16-2 17-1 Electrical Data Input/Output Capacitance Parameter Symbol Conditions Rating UnitAbsolute Maximum Ratings VDD = Vlvr D.C. Electrical Characteristics 17-4 VDD = 4.5 V to RUN mode MHz CPU clock VDD = Vlvr to 5.5VDD = 4.5 V to 5.5 100 TA = 25C Stop mode VDD = Vlvr to 3.3 Ports NRESET input A.C. Electrical CharacteristicsInterrupt input VDD = 5 180 High, low width Wait time TWAIT when released by an interrupt When released by a reset 216/fMain Oscillator Frequency fOSC1 Main Oscillator Clock Stabilization Time tST1 17-7 Subsystem Oscillator crystal Stabilization Time tST2Xtin Stop mode Supply voltage Data retention Data Retention Supply Voltage in Stop ModeData retention Stop mode, Vdddr = 2.0 Supply current 17-9 Stop Mode Sub Release Timing Initiated by Interrupts 10. Uart Timing Characteristics in Mode 0 10 MHz Parameter Symbol Test Conditions Min Typ Max Unit 11. A/D Converter Electrical Characteristics 17-12 12. LVR Low Voltage Reset Circuit Characteristics MAX Mechanical DataMIN 18-1 18-2 QFP-1010 19-1 19 S3P84E9 OTP VersionSdip SDAT/TBPWM/P4.3 SCLK/INT10/P4.2 44-QFPVPP/TEST 19-2 Test MEM Operating Mode CharacteristicsREG 19-4 Shine Development ToolsSasm Sama Assembler OTP Target BoardsOTP Programming Socket Adapter Emulator SMDS2+ or SK-1000 20-3 TB84E5/84E9 Target Board To UserVcc Settings Operating Mode Comments Power Selection Settings for TB84E5/84E9Idle LED Stop LED PIN DIP Socket 20-6 TB84E5/84E9 Adapter Cable for 44pin Connector Package SEC S3C8- Series Mask ROM Order Form Risk Order Information S3C8- Series Request for Production AT Customer RiskCustomer Risk Order Agreement Order Quantity and Delivery Schedule Attachment Check one S3C84E5/C84E9 Mask Option Selection FormProm Customer Checksum Company Name Signature Engineer