MV2F: Difference between revisions
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E0 Y19(43) -> #1 & #2 CHA SDRD1(B48) | E0 Y19(43) -> #1 & #2 CHA SDRD1(B48) | ||
(note | (note "A1~A2"3 considered the 68k bus, probably named A0-A23 officially with "A0" unused on 1 slot)</pre> |
Revision as of 06:08, 5 May 2012
Revised 2 slot board with the second generation chipset.
Pinouts
Z80
todo: formatting, maybe pics
Z80 A0~A15 to NEO-E0 @ K10: Z80 A0(30) -> E0 A1(64) Z80 A1(31) -> E0 A2(1) Z80 A2(32) -> E0 A3(2) Z80 A3(33) -> E0 A4(3) Z80 A4(34) -> E0 A5(4) Z80 A5(35) -> E0 A6(15) Z80 A6(36) -> E0 A7(16) Z80 A7(37) -> E0 A8(17) Z80 A8(38) -> E0 A9(18) Z80 A9(39) -> E0 A10(19) Z80 A10(40) -> E0 A11(20) Z80 A11(1) -> E0 A12(21) Z80 A12(2) -> E0 A13(31) Z80 A13(3) -> E0 A14(32) Z80 A14(4) -> E0 A15(33) Z80 A15(5) -> E0 A16(34) NEO-E0 to cart slots: Y0~Y15 from this NEO-E0 go to SDA0~SDA15 on both cart slots (A43~A58 on the CHA connector) Y0 -> #1 & #2 CHA A43(A0) etc... Y15 -> #1 & #2 CHA A58(A15) Z80 D0~D7 multiplexed from NEO-257 @ J9: Z80 D0(14) -> 257 Y8(40) Z80 D1(15) -> 257 Y9(41) Z80 D2(12) -> 257 Y10(43) Z80 D3(8) -> 257 Y11(44) Z80 D4(7) -> 257 Y12(55) Z80 D5(9) -> 257 Y13(56) Z80 D6(10) -> 257 Y14(59) Z80 D7(13) -> 257 Y15(60) NEO-257 to cart slots: 257 A8(36) -> #1 CHA SDD0(B51) 257 B8(37) -> #2 CHA SDD0(B51) 257 A9(38) -> #1 CHA SDD1(B52) 257 B9(39) -> #2 CHA SDD1(B52) etc... NEO-D0 to NEO-E0 to cart slots: D0 SDROM(11) -> 257 /OE(33) (for Y8~Y15 atleast, labelled as "GND" on wiki seems to be the /OE) D0 SDMRD(39) -> E0 A17(36) D0 SDROM(11) -> E0 A18(37) D0 SDRD0(45) -> E0 A19(38) D0 SDRD1(46) -> E0 A20(48) E0 Y16(39) -> #1 & #2 CHA SDMRD(B50) E0 Y17(40) -> #1 & #2 CHA SDROM(B49) E0 Y18(41) -> #1 & #2 CHA SDRD0(B47) E0 Y19(43) -> #1 & #2 CHA SDRD1(B48) (note "A1~A2"3 considered the 68k bus, probably named A0-A23 officially with "A0" unused on 1 slot)