LG GSA-4167B User Manual

Page 61

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65

ATAPI Interface Pin List

Pin Name

Pin No.

I/O

destination Function

HRSTB

59

5I

ATAPI

ATAPI-IF control signal (host reset signal)

DA2

92

5I

ATAPI

ATAPI-IF register address signal

DA1

89

DA0

91

DATA[15:0]

79,77,71,

5IO

ATAPI

ATAPI- IF data bus

69,67,65,

63,61,60,

62,64,66,

68,70,76,

78

DREQ

80

5TO

ATAPI

ATAPI-IF DMA request signal

ZIOWB

81

5I

ATAPI

ATAPI-IF write strobe pulse

ZIORB

82

5I

ATAPI

ATAPI-IF read strobe pulse

IORDY

83

5TO

ATAPI

ATAPI-IF control signal (drive Ready)

DACKB

84

5I

ATAPI

ATAPI-IF DMA acknowledge

HINTRQ

85

5TO

ATAPI

ATAPI-IF drive interrupt signal

IOCS16B

86

5TO

ATAPI

ATAPI-IF control signal (16-bit transfer)

PDIAGB

90

5IO

ATAPI

ATAPI-IF control signal

CS1FXB

93

5I

ATAPI

ATAPI-IF register chip select signal

CS3FXB

94

DASPB

95

5IO

ATAPI

ATAPI-IF control signal

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