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LPC47M14M-NC Datasheet(PDF) 4 Page - SMSC Corporation |
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LPC47M14M-NC Datasheet(HTML) 4 Page - SMSC Corporation |
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4 / 205 page  SMSC DS – LPC47M14X Page 4 Rev. 03/19/2001 TABLE OF CONTENTS 1 PIN LAYOUT ..........................................................................................................................................................8 2 PIN CONFIGURATION...........................................................................................................................................9 3 DESCRIPTION OF PIN FUNCTIONS...................................................................................................................10 3.1 BUFFER TYPE DESCRIPTIONS...........................................................................................................................14 3.2 PINS THAT REQUIRE EXTERNAL PULLUP RESISTORS ..........................................................................................15 4 BLOCK DIAGRAM ...............................................................................................................................................16 5 POWER FUNCTIONALITY...................................................................................................................................17 5.1 VCC POWER..................................................................................................................................................17 5.1.1 3 Volt Operation / 5 Volt Tolerance.........................................................................................................17 5.2 USB POWER..................................................................................................................................................17 5.3 VTR SUPPORT ...............................................................................................................................................17 5.4 VREF PIN .....................................................................................................................................................17 5.5 INTERNAL PWRGOOD ...................................................................................................................................18 5.6 32.768 KHZ TRICKLE CLOCK INPUT..................................................................................................................18 5.7 TRICKLE POWER FUNCTIONALITY......................................................................................................................18 5.8 MAXIMUM CURRENT VALUES............................................................................................................................19 5.9 POWER MANAGEMENT EVENTS (PME/SCI) ......................................................................................................19 6 FUNCTIONAL DESCRIPTION .............................................................................................................................20 6.1 SUPER I/O REGISTERS....................................................................................................................................20 6.2 HOST PROCESSOR INTERFACE (LPC) ...............................................................................................................20 6.3 LPC INTERFACE .............................................................................................................................................21 6.3.1 LPC Interface Signal Definition...............................................................................................................21 6.3.2 LPC Cycles.............................................................................................................................................21 6.3.3 Field Definitions ......................................................................................................................................21 6.3.4 LFRAME# Usage....................................................................................................................................21 6.3.5 I/O Read and Write Cycles .....................................................................................................................22 6.3.6 DMA Read and Write Cycles ..................................................................................................................22 6.3.7 DMA Protocol .........................................................................................................................................22 6.3.8 Power Management................................................................................................................................22 6.3.9 SYNC Protocol .......................................................................................................................................22 6.3.10 LPC Transfer ..........................................................................................................................................23 6.4 USB HUB FUNCTIONAL DESCRIPTION ...............................................................................................................24 6.4.1 USB Downstream Port Selection............................................................................................................25 6.5 FLOPPY DISK CONTROLLER ....................................................................................................................26 6.5.1 FDC Internal Registers ...........................................................................................................................27 6.5.2 STATUS REGISTER ENCODING ..........................................................................................................37 6.5.3 Instruction Set.........................................................................................................................................43 6.5.4 DATA TRANSFER COMMANDS............................................................................................................50 6.6 SERIAL PORT (UART) ................................................................................................................................60 6.7 INFRARED INTERFACE..............................................................................................................................72 6.8 MPU-401 MIDI UART...................................................................................................................................73 6.8.1 Overview.................................................................................................................................................73 6.8.2 Host Interface .........................................................................................................................................73 6.8.3 MIDI Data Port........................................................................................................................................74 6.8.4 Status Port..............................................................................................................................................74 6.8.5 MPU-401 Command Controller ..............................................................................................................76 6.8.6 MIDI UART .............................................................................................................................................77 6.8.7 MPU-401 Configuration Registers ..........................................................................................................77 6.9 PARALLEL PORT ........................................................................................................................................78 6.9.1 IBM XT/AT Compatible, Bi-Directional and EPP Modes .........................................................................79 6.9.2 Extended Capabilities Parallel Port.........................................................................................................84 6.10 POWER MANAGEMENT .............................................................................................................................94 6.11 SERIAL IRQ .................................................................................................................................................98 6.12 INTERRUPT GENERATING REGISTERS..............................................................................................................101 6.13 8042 KEYBOARD CONTROLLER DESCRIPTION ...................................................................................102 6.13.1 Keyboard Interface ...............................................................................................................................103 6.13.2 External Keyboard and Mouse Interface...............................................................................................104 6.13.3 Keyboard Power Management .............................................................................................................104 6.13.4 Interrupts ..............................................................................................................................................104 6.13.5 Memory Configurations.........................................................................................................................104 6.13.6 Register Definitions...............................................................................................................................105 |
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