TOPIC
This article gives the pin assignments and functions for the connectors on the Duo MiniDock.
DISCUSSION Main Expansion Connector (Processor-Direct Slot) A 152-pin main expansion connector, JAE part number JX20-152BA-D1LTH, provides the interface between the PowerBook Duo computer, and the Duo MiniDock. It mounts directly to the Duo Dock's main logic board, and plugs into the matching connector on the PowerBook Duo rear panel, giving the Duo Dock direct access to the microprocessor's 32-bit address bus, 32-bit data bus, and control signals. It also provides access to power, control, and status signals in other parts of the computer, and lets the Duo MiniDock provide power to the PowerBook Duo. The table below lists the subset of signals used for the Duo MiniDock interface. A slash before a signal name (/AS) indicates an active-low signal. Pin number Signal name Description 1, 2, 77, 78, 79 PR +24V EXT Raw +24 V from AC adapter 3 /PLUG IN Power surge control (grounded in the expansion device) 4, 19, 20, GND Logic ground 30, 38, 39, 51, 61, 65, 66, 80, 81, 115, 141, 142 7 /ON/OFF OUT On/off button 9 /STERM Synchronous termination 10 /DS Data strobe 11 /AS Address strobe 12, 29, 42, +5V MAIN OUT +5 V regulated power 13 /HALT Halt 14 /BERR Bus error 15 /BGACK Bus grant acknowledge 21 ADDR[0] Address bit 0 22 ADDR[2] Address bit 2 23 ADDR[4] Address bit 4 24 ADDR[6] Address bit 6 25 ADDR[8] Address bit 8 26 ADDR[10] Address bit 10 27 ADDR[12] Address bit 12 28 ADDR[14] Address bit 14 31 ADDR[18] Address bit 18 32 ADDR[20] Address bit 20 33 ADDR[22] Address bit 22 34 ADDR[24] Address bit 24 35 ADDR[26] Address bit 26 36 ADDR[28] Address bit 28 37 ADDR[30] Address bit 30 40 IOCLK 15.6672 MHz I/O clock 41 SIZ[1] Transfer size bit 1 43 DATA[0] Data bit 0 44 DATA[1] Data bit 1 45 DATA[2] Data bit 2 46 DATA[3] Data bit 3 47 DATA[4] Data bit 4 48 DATA[5] Data bit 5 49 DATA[6] Data bit 6 50 DATA[7] Data bit 7 52 DATA[17] Data bit 17 53 DATA[18] Data bit 18 54 DATA[19] Data bit 19 56 DATA[20] Data bit 20 57 DATA[21] Data bit 21 58 DATA[22] Data bit 22 59 DATA[23] Data bit 23 62 /SCC IRQ SCC interrupt request 63 SERVEE -5 V for SCC transceivers 67 +8V SOUND Special "clean" +8 V power for sound output 68 +5V MODEM +5 V power for modem 69 LINET/R Modem DAA line talk/receive 70 +5V SOUND +5 V power for sound output 72 SND OUT L Sound output left channel 73 EXT MIC FILT R Right input signal from external microphone 74 EXT MIC FILT L Left input signal from external microphone 75, 76, DAA GND Modem ground 151, 152 83 ADB DATA Apple Desktop Bus data 84 /ADBPWRON ADB power-on key 86 /CBREQ Cache burst request 87 /DSACK1 Data size acknowledge bit 1 88 /DSACK0 Data size acknowledge bit 0 89 /BR Bus request 90 /BG Bus grant 91 /SLEEP Sleep-state signal 92 FC[1] Function code bit 1 93 FC[0] Function code bit 0 94 /RMC Read-modify-write cycle 95 CPUCLK CPU bus clock 96 /CPURESET CPU reset (bus invalid) 97 ADDR[1] Address bit 1 98 ADDR[3] Address bit 3 99 ADDR[5] Address bit 5 100 ADDR[7] Address bit 7 101 ADDR[9] Address bit 9 102 ADDR[11] Address bit 11 103 ADDR[13] Address bit 13 104 ADDR[15] Address bit 15 105 ADDR[16] Address bit 16 106 ADDR[17] Address bit 17 107 ADDR[19] Address bit 19 108 ADDR[21] Address bit 21 109 ADDR[23] Address bit 23 110 ADDR[25] Address bit 25 111 ADDR[27] Address bit 27 112 ADDR[29] Address bit 29 113 ADDR[31] Address bit 31 114 /SLOT IN Expansion device plugged in grounds pin 116 RD Read/Write 117 SIZ[0] Transfer size bit 0 118 DATA[8] Data bit 8 119 DATA[9] Data bit 9 120 DATA[10] Data bit 10 121 DATA[11] Data bit 11 122 +5VEXTSENSE +5 V external sense 123 DATA[12] Data bit 12 124 DATA[13] Data bit 13 125 DATA[14] Data bit 14 126 DATA[15] Data bit 15 127 DATA[16] Data bit 16 128 DATA[24] Data bit 24 129 DATA[25] Data bit 25 130 DATA[26] Data bit 26 131 DATA[27] Data bit 27 132 DATA[28] Data bit 28 133 DATA[29] Data bit 29 134 DATA[30] Data bit 30 135 DATA[31] Data bit 31 137 /SWIM CS SWIM chip select 138 /SLOT E IRQ Pseudo-NuBus expansion slot E interrupt 139 /PFW Power fail warning (shutdown bit) 140 /IO RESET Reset output to I/O systems 143 DAA CNTLF Modem DAA control 144 DAA ID IN ID input from 152-pin connector to modem card 145 /RING DET Ring detect signal from the modem DAA 146 /RB DVR Modem relay B driver 147 /RA DVR Modem relay A driver 148 EXT MIC SEL External microphone plugged in HDI-20 Floppy Drive Connector Pin Signal name Description 1 GND Signal ground 2 GND Signal ground 3 GND Signal ground 4 GND Signal ground 5 NC No connection 6 +5V +5 volts DC 7 +5V +5 volts DC 8 +5V +5 volts DC 9 +5V +5 volts DC 10 NC No connection 11 PH0 Phase 0 12 PH1 Phase 1 13 PH2 Phase 2 14 PH3 Phase 3 15 WREQ/ Write request 16 HDSEL Head select 17 ENBL2/ External drive select 18 RD Read data 19 WD Write data 20 NC No connection Video Port Pin number Signal name Description 1 RED GND Red ground 2 RED VID Red video signal 3 /CSYNC Composite sync 4 SENSE0 Monitor sense bit 0 5 GRN VID Green video signal 6 GRN GND Green ground 7 SENSE1 Monitor sense bit 1 8 mc No connection 9 BLU VID Blue video signal 10 SENSE2 Monitor sense bit 2 11 C&VSYNC GND Ground for CSYNC and VSYNC 12 /VSYNC Vertical sync 13 BLU GND Blue ground 14 HSYNC GND HSYNC ground 15 HSYNC Horizontal sync HDI-30 SCSI Connector Pin number Signal name Description 1 nc Reserved for SCSI disk mode. 2 /DB0 Bit 0 of SCSI data bus 3, 8, 10, 12, GND Ground 13, 15, 17, 20, 22, 24 4 /DB1 Bit 1 of SCSI data bus 5 TPWR Termination power 6 /DB2 Bit 2 of SCSI data bus 7 /DB3 Bit 3 of SCSI data bus 9 /ACKS Handshake signal. When low acknowledges a request for data transfer 11 /DB4 Bit 4 of SCSI data bus 14 /DB5 Bit 5 of SCSI data bus 16 /DB6 Bit 6 of SCSI data bus 18 /DB7 Bit 7 of SCSI data bus 19 /DBP SCSI data bus parity bit 21 /REQ Request for a data transfer 23 /BSY When active (low) indicates that the SCSI data bus is busy 25 /ATN When active (low) indicates an attention condition 26 /C/D When active (low) indicates that data is on the SCSI bus. When high, indicates that control signals are on the bus 27 /RST SCSI bus reset 28 /MSG Indicates the message phase 29 /SEL SCSI select 30 /I/O Controls the direction of data output. When high, data is input Modem and Printer Ports Pin number Signal name Description 1 HSKo Handshake output. Connected to the Request to Send (RTS) pin on the Combo chip. Tristated when the Data Terminal Ready (DTR) signal is inactive. 2 HSKi Handshake input. Connected to the Transmit Receive Clock(TRXC) pin on the Combo chip. 3 /TXD Transmit data (inverted). Connected to the Transmit Data (TXD) pin on the Combo chip. Tristated when DTR is inactive. 4 SG Signal ground. Connected to logic and chassis ground. 5 /RXD Receive data (inverted). Connected to the Receive Data (RXD) pin on the Combo chip. 6 TXD Transmit data. Connected to the Transmit Data (TXD) pin on the Combo chip. Tristated when DTR is inactive. 7 GPi General purpose input. Connected to the Data Carrier Detect (DCD) pin on the Combo chip. 8 RXD+ Receive data. Connected to the Receive Data (RXD) pin on the Combo chip. 10, 11, 12 GND These pins are connected to chassis ground. Apple Desktop Bus Interface Pin number Signal name Description 1 ADB Bidirectional data bus for input and output 2 POWER ON Key on ADB keyboard (if connected) grounds this pin to pin 4, enabling power to be turned on from the keyboard 3 +5V +5 V power 4 GND Logic ground 5, 6, 7 GND Chassis ground Sound Ports Two monaural mini phone jacks provide connections for sound input and output. |
| Document Information | |
| Product Area: | Computers |
| Category: | PowerBook |
| Sub Category: | Duo Dock & Minidock |
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