Owner's manual

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ETX-CV User’s Manual Page 27

Signal Descriptions (cont’d)

Pin Signal Description Type PU/PD Comment

51 LPT | FLPY# LPT / Floppy Interface Select IO-3,3 PU 10k 3,3V -

52 RSV - NC - -

53 5VCC Power +5V PWR - -

54 GND Ground PWR - -

55 STB# | RSV LPT Strobe Signal O-5 - -

AFD# | DENSEL LPT Automatic Feed / Floppy Density Select

O-5 - -

57 RSV - NC - -

58 PD7 | RSV LPT Data Bus D7 IO-5 - -

59 IRRX Infrared Receive I-5 - -

ERR# | HDSEL#

LPT Error / Floppy Head Select IO-5 - -

61 IRTX Infrared Transmit O-5 - -

62 PD6 | RSV LPT Data Bus D6 IO-5 - -

63 RXD2 Data Receive COM2 I-5 - -

64 INIT# | DIR# LPT Initiate / Floppy Direction O-5 - -

65 GND Ground PWR - -

66 GND Ground PWR - -

67 RTS2# Request to Send COM2 O-5 - -

68 PD5 | RSV LPT Data Bus D5 IO-5 - -

69 DTR2# Data Terminal Ready COM2 O-5 - -

SLIN# | STEP#

LPT Select / Floppy Motor Step O-5 - -

71 DCD2# Data Carrier Detect COM2 I-5 - -

PD4 | DSKCHG#

LPT Data Bus D4 IO-5 - -

73 DSR2# Data Set Ready COM2 I-5 - -

PD3 | RDATA#

LPT Data Bus D3 IO-5 - -

75 CTS2# Clear to Send COM2 I-5 - -

76 PD2 | WP# LPT Data Bus D2 IO-5 - -

77 TXD2 Data Transmit COM2 O-5 PU 4k7 5V -

78 PD1 | TRK0# LPT Data Bus D1 IO-5 - -

79 RI2# Ring Indicator COM2 I-5 - -

80 PD0 | INDEX# LPT Data Bus D0 IO-5 - -

81 5VCC Power +5V PWR - -

82 5VCC Power +5V PWR - -

83 RXD1# Data Receive COM1 I-5 - -

84 ACK# | DRV LPT Acknowledge / Floppy Drive Select IO-5 - -

85 RTS1# Request to Send COM1 O-5 PD 4k7 -

86 BUSY# | MOT LPT Busy / Floppy Motor Select IO-5 - -

87 DTR1# Data Terminal Ready COM1 O-5 - -

88 PE | WDATA# LPT Paper Empty / Floppy Raw Write Data IO-5 - -

89 DCD1# Data Carrier Detect COM1 I-5 - -

SLCT#|WGATE# LPT Power On / Floppy Write Enable IO-5 - -

91 DSR1# Data Set Ready COM1 I-5 - -

92 MSCLK Mouse Clock O-5 PU 4k7 5V -

93 CTS1# Clear to Send COM1 I-5 - -

94 MSDAT Mouse Data O-5 PU 4k7 5V -

95 TXD1 Data Transmit COM1 O-5 PU 4k7 5V -

96 KBCLK Keyboard Clock O-5 PU 4k7 5V -

97 RI1# Ring Indicator COM1 I-5 - -

98 KBDAT Keyboard Data O-5 PU 4k7 5V -

99 GND Ground PWR - -

100 GND Ground PWR - -