PC87393-VJG datasheet(8/148 Pages) NSC

Part #	PC87393-VJG

Description	100-Pin LPC SuperI/O Devices for Portable Applications

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Manufacturer	NSC [National Semiconductor (TI)]

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4.3.4

WATCHDOG Status Register (WDST) ........................................................................ 83

4.4

WATCHDOG TIMER REGISTER BITMAP ............................................................................... 83

5.0

Game Port (GMP)

5.1

OVERVIEW ............................................................................................................................... 84

5.2

FUNCTIONAL DESCRIPTION .................................................................................................. 84

5.2.1

Game Device Axis Position Indication ......................................................................... 84

5.2.2

Capturing the Position ................................................................................................. 85

5.2.3

Button Status Indication ............................................................................................... 85

5.2.4

Operation Modes ......................................................................................................... 86

5.2.5

Operation Control ........................................................................................................ 87

5.3

GAME PORT REGISTERS ....................................................................................................... 87

5.3.1

Game Port Register Map ............................................................................................. 87

5.3.2

Game Port Control Register (GMPCTL) ...................................................................... 88

5.3.3

Game Port Legacy Status Register (GMPLST) ........................................................... 89

5.3.4

Game Port Extended Status Register (GMPXST) ....................................................... 90

5.3.5

Game Port Interrupt Enable Register (GMPIEN) ......................................................... 91

5.3.6

Game Device A X-Axis Position Low Byte (GMPAXL) ................................................ 92

5.3.7

Game Device A X-Axis Position High Byte (GMPAXH) ............................................... 92

5.3.8

Game Device A Y-Axis Position Low Byte (GMPAYL) ................................................ 92

5.3.9

Game Device A Y-Axis Position High Byte (GMPAYH) ............................................... 92

5.3.10

Game Device B X-Axis Position Low Byte (GMPBXL) ................................................ 93

5.3.11

Game Device B X-Axis Position High Byte (GMPBXH) ............................................... 93

5.3.12

Game Device B Y-Axis Position Low Byte (GMPBYL) ................................................ 93

5.3.13

Game Device B Y-Axis Position High Byte (GMPBYH) ............................................... 93

5.3.14

Game Port Event Polarity Register (GMPEPOL) ........................................................ 94

5.4

GAME PORT BITMAP ............................................................................................................... 95

6.0

Musical Instrument Digital Interface (MIDI) Port

6.1

OVERVIEW ............................................................................................................................... 96

6.2

FUNCTIONAL DESCRIPTION .................................................................................................. 96

6.2.1

Internal Bus Interface Unit ........................................................................................... 97

6.2.2

Port Control and Status Registers ............................................................................... 97

6.2.3

Data Buffers and FIFOs ............................................................................................... 97

6.2.4

MIDI Communication Engine ....................................................................................... 97

6.2.5

MIDI Signals Routing Control Logic ............................................................................. 98

6.2.6

Operation Modes ......................................................................................................... 98

6.2.7

MIDI Port Status Flags ................................................................................................ 99

6.2.8

MIDI Port Interrupts ................................................................................................... 100

6.2.9

Enhanced MIDI Port Features ................................................................................... 101

6.3

MIDI PORT REGISTERS ........................................................................................................ 102

6.3.1

MIDI Port Register Map ............................................................................................. 102

6.3.2

MIDI Data In Register (MDI) ...................................................................................... 102

6.3.3

MIDI Data Out Register (MDO) ................................................................................. 102

6.3.4

MIDI Status Register (MSTAT) .................................................................................. 103

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