Memory Maps, Program Area | Oki MSM80C154S, MSM83C154S manual

MSM80C154S/83C154S

¡ Semiconductor

MEMORY MAPS

Program Area

		65535	0FFFFH
	ROM AREA
EXTERNAL ROM AREA	MSM83C154S EXTERNAL	16384	4000H
EXTERNAL ROM AREA	MSM83C154S EXTERNAL	16383	3FFFH
MSM80C154S	INTERNAL ROM AREA	44	002CH
		43	002BH

	MSM83C154S
		0	7	6	5	4	3	2 1	0

Timer interrupt 2 start	43	002BH


S I/O interrupt start	35	0023H


Timer interrupt 1 start	27	001BH


External interrupt 1 start	19	0013H


Timer interrupt 0 start	11	000BH


External interrupt 0 start	3	0003H

	2	0002H

	1	0001H

CPU reset start	0	0000H

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Oki MSM80C154S, MSM83C154S manual Memory Maps, Program Area

Contents

Features General Description¡SemiconductorSemiconductor MSM80C154S/83C154S Cmos 8-bit Microcontroller MSM80C154S/83C154S ¡ Semiconductor Signal TIMER/COUNTER 0 Interrupt2PORT Address Decoder Psen PIN Configuration TOP ViewPin Plastic DIP Reset Pin Plastic QFP44 P1.4 P1.5 P1.6 P1.7 25 P2.7 24 P2.6 23 P2.5 P2.4 Pin Plastic Tqfp XTAL1 XTAL2 19 P3.7/RD 18 P3.6/WR Pin Plastic QFJ35 EA P3.0/RXD 34 NC 33 ALE P3.1/TXD ALE PIN DescriptionsMSM80C154S/83C154S¡ Semiconductor XTAL2 ¡ SemiconductorMSM80C154S/83C154SXTAL1 Diagram of Special Function Registers Registers Special Function Registers Timer mode register Tmod Gate CPU is reset Power control register PconInterrupt signal Timer control register Tcon Interrupt request flag for external interruptTcon TR1 TF0 TR0 IE1 IT1 IE0 IT0 Mode Serial port control register SconREN Interrupt enable register IE Interrupt control bit for serial portReserved bit. The output data is 1 if the bit is read Overall interrupt control bit Priority is assigned when bit is Interrupt priority register IPPriority interrupt circuit control bit PCT PT2 PT1 PX1 PT0 PX0 Bank When this bit is set to Control register IoconIZC Received at a serial port Timer 2 control register T2CON Memory Maps Program Area HEX 0FF Addressingindirectregister BIT RAMBANK3 BANK2 MSM80C154S/83C154S Diagram of Internal Data Memory RAM 0FFH2FH 0FH Absolute Maximum Ratings Recommended Operating Conditions Port 0, ALE, Psen Electrical CharacteristicsDC Characteristics Maximum power supply current normal operation ICC mA Maximum power supply current idle mode ICC mA VO=0.1 Port 1, 2 Logical 1 to 0 Transition Output High Voltage Port 1, 2Logical 0 Input Current VI=0.1 Logical 1 Output Current 285 Output Measuring circuitsInput ALE Signal Width Address Setup TimeFalling Edge Psen Signal Width To ALE Falling Edge Address Hold Time Instr External program memory read cyclePORT0 External data memory access AC characteristics External data memory read cycle External data memory write cycle Serial port I/O Extension Mode AC characteristics Parameter Symbol Min Max Unit ALE Shift Clock Input Data AC Characteristics Measuring Conditions External Oscillator SignalXTAL1 external clock input waveform conditions External Clock Drive Waveform Basictiming TimingDiagram 294