DEC UNIBUS Signals and Pinout
Name High/Low Termination UNIBUS Cable SPC Backplane Type INITIALIZATION AND SHUTDOWN BUS DC LO L L Slow BF2 CN1 BUS AC LO L L Slow BF1 CV1 BUS INIT L L Fast AA1 DL1 ARBITRATION BUS NPR L L Fast AS2 FJ1 BUS BR7 L L Fast AT2 DD2 BUS BR6 L L Fast AU2 DE2 BUS BR5 L L Fast BC1 DF2 BUS BR4 L L Fast BD2 DH2 BUS NPG H H Grant AU1 In-CA1; Out-CB1 BUS BG7 H H Grant AV1 In-DK2; Out-DL2 BUS BG6 H H Grant BA1 In-DM2; Out-DN2 BUS BG5 H H Grant BB1 In-DP2; Out-DR2 BUS BG4 H H Grant BE2 In-DS2; Out-DT2 BUS SACK L L Fast AR2 FT2 DATA TRANSFER BUS A00 L L Fast BH2 EH2 BUS A01 L L Fast BH1 EH1 BUS A02 L L Fast BJ2 EF1 BUS A03 L L Fast BJ1 EV2 BUS A04 L L Fast BK2 EU2 BUS A05 L L Fast BK1 EV1 BUS A06 L L Fast BL2 EU1 BUS A07 L L Fast BL1 EP2 BUS A08 L L Fast BM2 EN2 BUS A09 L L Fast BM1 ER1 BUS A10 L L Fast BN2 EP1 BUS A11 L L Fast BN1 EL1 BUS A12 L L Fast BP2 EC1 BUS A13 L L Fast BP1 EK2 BUS A14 L L Fast BR2 EK1 BUS A15 L L Fast BR1 ED2 BUS A16 L L Fast BS2 EE2 BUS A17 L L Fast BS1 ED1 BUS C0 L L Fast BU2 EJ2 BUS C1 L L Fast BT2 EF2 BUS D00 L L Fast AC1 CS2 BUS D01 L L Fast AD2 CR2 BUS D02 L L Fast AD1 CU2, FE2* BUS D03 L L Fast AE2 CT2, FL1* BUS D04 L L Fast AE1 CN2, FN2* BUS D05 L L Fast AF2 CP2, FF1* BUS D06 L L Fast AF1 CV2, FF2* BUS D07 L L Fast AH2 CM2, FH1* BUS D08 L L Fast AH1 CL2, FK1* BUS D09 L L Fast AJ2 CK2 BUS D10 L L Fast AJ1 CJ2 BUS D11 L L Fast AK2 CH1 BUS D12 L L Fast AK1 CH2 BUS D13 L L Fast AL2 CF2 BUS D14 L L Fast AL1 CE2 BUS D15 L L Fast AM2 CD2 BUS PA L L Fast AM1 CC1 BUS PB L L Fast AN2 CS1 BUS BBSY L L Fast AP2 FD1 BUS MSYN L L Fast BV1 EE1 BUS INTR L L Fast AB1 FM1 BUS SSYN L L Fast BU1 EJ1, FC1* MISCELLANEOUS BOOT ENABL L L N/A <NONE> AR1 HALT REQ L L N/A <NONE> CP1 HALT GRANT L L N/A <NONE> CR1 LTC N/A N/A <NONE> CD1
* FOR FORWARDS COMPATIBILITY, USE THE FIRST PIN RATHER THAN THE SECOND
(Thanks to Kevin McQuiggin)
Disclaimer: This documentation has been collected from different sources and is provided "as is" without warranty of any kind. In no event shall the author be liable for indirect, special, incidental, or consequential damages of any kinde arising from any error in this documentaion, including without limitation any loss or interruption of business, profits, use or data.
Updates: Please email any additions/updates/corrections to The Pinouts Database to:
pinouts {at}
pinouts.org.uk
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