LPC47M14X datasheet(4/205 Pages) SMSC

4 / 205 page

SMSC DS – LPC47M14X

Page 4

Rev. 03/19/2001

TABLE OF CONTENTS

PIN LAYOUT ..........................................................................................................................................................8

PIN CONFIGURATION...........................................................................................................................................9

DESCRIPTION OF PIN FUNCTIONS...................................................................................................................10

3.1

BUFFER TYPE DESCRIPTIONS...........................................................................................................................14

3.2

PINS THAT REQUIRE EXTERNAL PULLUP RESISTORS ..........................................................................................15

BLOCK DIAGRAM ...............................................................................................................................................16

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

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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