Terminal sequence of expansion slots for X680x0 When the expansion slot of X680x0 sorry wrong (which is signal arrangement as shown in the figure below ^ ^ ;). This figure has been seen from the figure on the expansion slot connector. (Come to think of it, I feel like there was a signal that has been omitted in X68030 · · ·) No. Signal Name Pin No. Signal name + component side solder side + ----- + GND B1 | [] [] | A1 GND 10MHz B2 | [] [] | A2 20MHz # 10MHz B3 | [] [] | A3 GND E B4 | [] [] | A4 DB0 AB1 B5 | [] [] | A5 DB1 AB2 B6 | [] [] | A6 DB2 AB3 B7 | [] [] | A7 DB3 AB4 B8 | [] [] | A8 DB4 AB5 B9 | [] [] | A9 DB5 AB6 B10 | [] [] | A10 DB6 GND B11 | [] [] | A11 GND AB7 B12 | [] [] | A12 DB7 AB8 B13 | [] [] | A13 DB8 AB9 B14 | [] [] | A14 DB9 AB10 B15 | [] [] | A15 DB10 AB11 B16 | [] [] | A16 DB11 AB12 B17 | [] [] | A17 DB12 AB13 B18 | [] [] | A18 DB13 AB14 B19 | [] [] | A19 DB14 AB15 B20 | [] [] | A20 DB15 GND B21 | [] [] | A21 GND AB16 B22 | [] [] | A22 +12 V AB17 B23 | [] [] | A23 +12 V AB18 B24 | [] [] | A24 FC0 AB19 B25 | [] [] | A25 FC1 AB20 B26 | [] [] | A26 FC2 AB21 B27 | [] [] | A27 # AS AB22 B28 | [] [] | A28 # LDS AB23 B29 | [] [] | A29 # UDS IDDIR B30 | [] [] | A30 R / # W NC B31 | [] [] | A31 NC HSYNC B32 | [] [] | A32-12V VSYNC B33 | [] [] | A33-12V # DONE B34 | [] [] | A34 # VMA # DTC B35 | [] [] | A35 # EXVPA # EXREQ B36 | [] [] | A36 # DTACK # EXACK B37 | [] [] | A37 # EXRESET # EXPCL B38 | [] [] | A38 # HALT # EXOWN B39 | [] [] | A39 # EXBERR # EXNMI B40 | [] [] | A40 # EXPWON GND B41 | [] [] | A41 GND # IRQ2 B42 | [] [] | A42 Vcc2 # IRQ4 B43 | [] [] | A43 Vcc2 # IACK2 B44 | [] [] | A44 SELEN # IACK4 B45 | [] [] | A45 CASRDEN # BR B46 | [] [] | A46 CASWRL # BG B47 | [] [] | A47 CASWRU # BGACK B48 | [] [] | A48 INH2 Vcc1 B49 | [] [] | A49 Vcc1 Vcc1 B50 | [] [] | A50 Vcc1 + ----- + # Signal with negative logic signal is a signal name. In the circuit diagram is equivalent to the signal bars are marked on the signal name. Meaning of the signal (that will be helpful in the production) are as follows: primary signal. (Equivalent to A1 ~ A23 of circuit diagram) signal address bus AB1 ~ AB23 (Equivalent to D0 ~ D15 of circuit diagram) signal data bus DB0 ~ DB15 FC0 ~ FC2 function code # AS - address strobe # LDS - Vcc1 interrupt response # IACK2 - / 4 interrupt request # IRQ2 - / 4 IDDIR direction data transfer completion signal # UDS # EXRESET - reset the data strobe R / # W # DTACK - read-write data + (Vcc will be here because the circuit diagram) 5V power supply Ground GND NC Vcc2 non-connect backup power +5 V (not used)