Datenblatt-Suchmaschine für elektronische Bauteile |
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MC68EC020RP25 Datenblatt(PDF) 10 Page - Motorola, Inc |
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MC68EC020RP25 Datenblatt(HTML) 10 Page - Motorola, Inc |
10 / 306 page 9/29/95 SECTION 1: OVERVIEW UM Rev.1.0 xiv M68020 USER’S MANUAL MOTOROLA LIST OF ILLUSTRATIONS Figure Page Number Title Number 1-1 MC68020/EC020 Block Diagram .....................................................................1-3 1-2 User Programming Model ................................................................................1-5 1-3 Supervisor Programming Model Supplement .................................................. 1-6 1-4 Status Register (SR) ........................................................................................ 1-7 1-5 Instruction Pipe ................................................................................................1-13 2-1 General Exception Stack Frame ...................................................................... 2-6 3-1 Functional Signal Groups .................................................................................3-1 4-1 MC68020/EC020 On-Chip Cache Organization .............................................. 4-2 4-2 Cache Control Register ....................................................................................4-3 4-3 Cache Address Register .................................................................................. 4-4 5-1 Relationship between External and Internal Signals........................................ 5-2 5-2 Input Sample Window ......................................................................................5-2 5-3 Internal Operand Representation .....................................................................5-6 5-4 MC68020/EC020 Interface to Various Port Sizes ............................................5-6 5-5 Long-Word Operand Write to Word Port Example........................................... 5-10 5-6 Long-Word Operand Write to Word Port Timing ..............................................5-11 5-7 Word Operand Write to Byte Port Example ..................................................... 5-12 5-8 Word Operand Write to Byte Port Timing.........................................................5-13 5-9 Misaligned Long-Word Operand Write to Word Port Example ........................ 5-14 5-10 Misaligned Long-Word Operand Write to Word Port Timing............................ 5-15 5-11 Misaligned Long-Word Operand Read from Word Port Example .................... 5-16 5-12 Misaligned Word Operand Write to Word Port Example.................................. 5-16 5-13 Misaligned Word Operand Write to Word Port Timing ..................................... 5-17 5-14 Misaligned Word Operand Read from Word Bus Example .............................. 5-18 5-15 Misaligned Long-Word Operand Write to Long-Word Port Example ............... 5-18 5-16 Misaligned Long-Word Operand Write to Long-Word Port Timing .................. 5-19 5-17 Misaligned Long-Word Operand Read from Long-Word Port Example ........... 5-20 5-18 Byte Enable Signal Generation for 16- and 32-Bit Ports.................................. 5-23 5-19 Long-Word Read Cycle Flowchart ................................................................... 5-26 5-20 Byte Read Cycle Flowchart ..............................................................................5-27 5-21 Byte and Word Read Cycles—32-Bit Port ....................................................... 5-28 5-22 Long-Word Read—8-Bit Port ...........................................................................5-29 5-23 Long-Word Read—16- and 32-Bit Ports .......................................................... 5-30 |
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