jhp@sactoh0.SAC.CA.US (Jim H. Puga) (11/28/90)
Well, I hope this works. Does anyone have the pin-outs to the internal bus in the Atari MEGA4? I would appreciate it if someone could tell me where I could find them. Thanks in advance. -- ------------------------------------------------------------- - Usenet : jhp@sactoh0.SAC.CA.US - - UUCP : It's around here somewhere. - -------------------------------------------------------------
s37837k@saha.hut.fi (Jari Lehto) (12/11/90)
The internal bus (Megabus) is directly (parallel) connected with the CPU. Only thing you have to do is to measure which pin leads to which pin of the MC 68000. You have the pin assignment of the 68000? *** Jari Lehto, jartsu@otax.hut.fi, s37837k@saha.hut.fi ***
alkman@hexagon.se (Stefan Alkman) (12/12/90)
In article <1990Dec11.062945.1551@santra.uucp> s37837k@saha.hut.fi (Jari Lehto) writes: >The internal bus (Megabus) is directly (parallel) connected with the CPU. >Only thing you have to do is to measure which pin leads to which pin of >the MC 68000. You have the pin assignment of the 68000? Here you have the pinout:s of the Megabuss: 1 - D4 2 - D5 3 - D3 4 - D6 5 - D2 6 - D7 7 - D1 8 - D8 9 - D0 10 - D9 11 - AS* 12 - D10 13 - UDS* 14 - D11 15 - LDS* 16 - D12 17 - R/W* 18 - D13 19 - DTACK* 20 - D14 21 - BGO* 22 - D15 23 - BGACK* 24 - GND 25 - BR* 26 - A23 27 - GND 28 - A22 29 - CLK8 30 - A21 31 - GND 32 - GND 33 - HALT* 34 - A20 35 - RESET* 36 - A19 37 - VMA* 38 - A18 39 - E 40 - A17 41 - VPA* 42 - A16 43 - BERR 44 - A15 45 - ENI 7* 46 - A14 47 - ENI 5* 48 - A13 49 - ENT 3* 50 - A12 51 - FC2 52 - A11 53 - FC1 54 - A10 55 - FC0 56 - A9 57 - A1 58 - A8 59 - A2 60 - A7 61 - A3 62 - A6 63 - A4 64 - A5 -- Stefan Alkman Voice: +46-19-164787 alkman@hexagon.se or !sunic!kullmar!pkmab!hexagon!alkman >>>>>> Tech. College of Orebro, SWEDEN <<<<<<