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ECE 521/511: Digital System & Microprocessor

ECE 521/511: Digital System & Microprocessor. UiTM MOTOROLA 68000 DIO TRAINER BOARD. INPUT/OUTPUT CONNECTOR. BOTTOM LAYER. TOP LAYER. Voltage regulator. 40 ways I/O Connector. Halt / Error LED. EVEN ROM. EVEN RAM. +12V Dc Power Socket. Power LED. Crystal Oscillator 10MHz.

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ECE 521/511: Digital System & Microprocessor

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  1. ECE 521/511: Digital System & Microprocessor

  2. UiTM MOTOROLA 68000 DIO TRAINER BOARD

  3. INPUT/OUTPUT CONNECTOR BOTTOM LAYER TOP LAYER

  4. Voltage regulator 40 ways I/O Connector Halt / Error LED EVEN ROM EVEN RAM +12V Dc Power Socket Power LED Crystal Oscillator 10MHz RESET BUTTON MOTOROLA 68000 MICROPROCESSOR ODD ROM ODD RAM

  5. 40-PIN IDE CABLE INPUT/OUTPUT INTERFACE CIRCUIT 68000 DIO TRAINER BOARD

  6. HOW TO DESIGN INPUT/OUTPUT INTERFACE CIRCUIT

  7. EXAMPLE – CONNECTION TO LATCH TURN ON LED1 ORG $400 MOVE.B #$FD,$600000 END TURN ON LED2 ORG $400 MOVE.B #%1111 1011,$600000 END LED1 LED2 • Note : • ORG MUST START FROM ADDRESS $400 • RAM ADDRESS START FROM $200000 All Vcc and Gnd should be connected to here

  8. EXAMPLE – CONNECTION TO BUFFER START MOVE.W $A00000,D0 AND.B #$01,D0 CMP.B #0,D0 BEQ SWITCH BRA START SWITCH DO SOMETHING ….. ….. ….. BRA START END All Vcc and Gnd should be connected to here

  9. EXAMPLE – CONNECTION TO MORE THAN 1 I/O INTERFACE ORG $400 BUFFER EQU $400000 LATCH EQU $800000 START MOVE.B BUFFER,D0 MOVE.B D0, LATCH BRA START END

  10. EXAMPLE – CONNECTION TO PIT 68230 D0-D7 D0-D7 PA0-PA7 DTACK* DTACK* PB0-PB7 R/W* R/W* CLK CLK PC0-PC7 RESET* RESET* A6-A23 MAD CS* (Register select pins) RS1-RS5 A1-A5 M68k M68230

  11. EXAMPLE – CONNECTION TO PIT 68230

  12. The End

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