Oki MSM83C154S manuals
Computer Equipment > Network Card
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36 pages 199.51 Kb
GENERAL DESCRIPTION FEATURES SemiconductorMSM80C154S/83C154S3 BLOCK DIAGRAM (MSM83C154S)261 MSM80C154S/83C154S Semiconductor 262 SemiconductorMSM80C154S/83C154S 40-Pin Plastic DIP 4 PIN CONFIGURATION (TOP VIEW)263 MSM80C154S/83C154S Semiconductor 5 PIN CONFIGURATION (Continued)44-Pin Plastic QFP 6 26444-Pin Plastic TQFP 265 7 PIN CONFIGURATION (Continued)44-Pin Plastic QFJ 266 SemiconductorMSM80C154S/83C154S 8 PIN DESCRIPTIONS9 PIN Descriptions (Continued)10 REGISTERSDiagram of Special Function Registers 11 269Special Function Registers Timer mode register (TMOD) 12 270Power control register (PCON) 13 271Timer control register (TCON) 14 272Serial port control register (SCON) 15 273MSM80C154S/83C154S Semiconductor Interrupt enable register (IE) 16 274Interrupt priority register (IP) 17 275Program status word register (PSW) 18 276I/O control register (IOCON) 19 277Timer 2 control register (T2CON) 278 20 MEMORY MAPSProgram Area 21 279Internal Data Memory and Special Function Register Layout Diagram 22 280Diagram of Internal Data Memory (RAM)REGISTER 0, 1, INDIRECT ADDRESSING REGISTERS 0-7 DIRIECT ADDRESSING BIT ADDRESSING DATA ADDRESSING 281 23 ABSOLUTE MAXIMUM RATINGSRECOMMENDED OPERATING CONDITIONS*1 Depends on the specifications for the oscillator or ceramic resonater. 282 24 ELECTRICAL CHARACTERISTICSDC Characteristics 1 25 283Maximum power supply current normal operation ICC (mA) Maximum power supply current idle mode ICC (mA) 26 284DC Characteristics 2 28 286Measuring circuits 29 287AC Characteristics (1) External program memory access AC characteristics *1 The variable check is from 0 to 24 MHz when the external check is used. 30 288(2) External program memory read cycle 31 289(3) External data memory access AC characteristics *1 The variable check is from 0 to 24 MHz when the external check is used. *2 For 2.2VCC<4 V 32 290(4) External data memory read cycle (5) External data memory write cycle 33 291(6) Serial port (I/O Extension Mode) AC characteristics 35 293(7) AC Characteristics Measuring Conditions 1.Input/output signal External Clock Drive Waveform 36 294Timing Diagram Basic timing
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