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PC87303 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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PC87303 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
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3 / 114 page  Table of Contents 10 PIN DESCRIPTION 10 20 CONFIGURATION REGISTERS 16 21 Overview 16 22 Software Configuration 16 23 Hardware Configuration 19 24 Index and Data Registers 19 25 Base Configuration Registers 21 251 Function Enable Register 21 252 Function Address Register 22 253 Power and Test Register 22 254 Function Control Register 23 255 Printer Control Register 23 256 KBC and BTC Control Register 24 257 Power Management Control Register 24 258 Tape UARTs and Parallel Port Configuration Register 25 259 SIO Identification Register 25 2510 Advanced SIO Configuration Register 25 2511 Chip Select 0 Configuration Register 0 25 2512 Chip Select 0 Configuration Register 1 25 2513 Chip Select 1 Configuration Register 0 26 2514 Chip Select 1 Configuration Register 1 26 26 Power-Down Options 26 27 Power-Up Procedure and Considerations 26 271 Crystal Stabilization 26 272 UART Power-Up 26 273 FDC Power-Up 26 30 FDC REGISTER DESCRIPTION 27 31 FDC Control Registers 28 311 Status Register A (SRA) 28 312 Status Register B (SRB) 28 313 Digital Output Register (DOR) 29 314 Tape Drive Register (TDR) 29 315 Main Status Register (MSR) 31 316 Data Rate Select Register (DSR) 31 317 Data Register (FIFO) 32 318 Digital Input Register (DIR) 32 319 Configuration Control Register (CCR) 33 32 Result Phase Status Registers 33 321 Status Register 0 (ST0) 33 322 Status Register 1 (ST1) 33 323 Status Register 2 (ST2) 34 324 Status Register 3 (ST3) 34 40 FDC COMMAND SET DESCRIPTION 34 41 Command Descriptions 34 411 Configure Command 34 412 Dumpreg Command 35 413 Format Track Command35 414 Invalid Command 38 415 Lock Command 38 416 Mode Command 38 417 NSC Command 39 418 Perpendicular Mode Command 40 419 Read Data Command 41 4110 Read Deleted Data Command 43 4111 Read ID Command 43 4112 Read A Track Command 43 4113 Recalibrate Command 44 4114 Relative Seek Command 44 4115 Scan Commands 45 4116 Seek Command 46 4117 Sense Drive Status Command 46 4118 Sense Interrupt Command 46 4119 Set Track Command 47 4120 Specify Command 47 4121 Verify Command 48 4122 Version Command 49 4123 Write Data Command 50 4124 Write Deleted Data Command 50 42 Command Set Summary 51 43 Mnemonic Definitions for FDC Commands 56 50 FDC FUNCTIONAL DESCRIPTION 57 51 Microprocessor Interface 57 52 Modes of Operation 57 53 Controller Phases 57 531 Command Phase 57 532 Execution Phase 57 5321 DMA ModeFIFO Disabled 58 5322 DMA ModeFIFO Enabled 58 5323 Interrupt ModeFIFO Disabled 59 5324 Interrupt ModeFIFO Enabled 59 5325 Software Polling 59 533 Result Phase 59 534 Idle Phase 59 535 Drive Polling Phase 60 54 Data Separator 60 55 Crystal Oscillator 62 56 Perpendicular Recording Mode 62 57 Data Rate Selection 64 58 Write Precompensation 64 59 FDC Low Power Mode Logic 64 510 Reset Operation 64 3 |
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