diff options
author | 2008-10-13 14:16:07 +0000 | |
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committer | 2008-10-13 14:16:07 +0000 | |
commit | 3d85b66c5e0e6683feba4e623f19bd6ae3fa9b6f (patch) | |
tree | 4e4f16090c6ed4c0e63c6757460ac21711f14885 /src/emu/machine/z80pio.h | |
parent | 0fddfa1a446daae73ad2aadf15af27336082f0bc (diff) |
Added pinout, not worth mentioning in whatsnew.
Diffstat (limited to 'src/emu/machine/z80pio.h')
-rw-r--r-- | src/emu/machine/z80pio.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/src/emu/machine/z80pio.h b/src/emu/machine/z80pio.h index 642ee12626f..4534078589d 100644 --- a/src/emu/machine/z80pio.h +++ b/src/emu/machine/z80pio.h @@ -1,10 +1,33 @@ /*************************************************************************** - Z80 PIO implementation + Z80 PIO (Z8420) implementation Copyright Nicola Salmoria and the MAME Team. Visit http://mamedev.org for licensing and usage restrictions. +*************************************************************************** + _____ _____ + D2 1 |* \_/ | 40 D3 + D7 2 | | 39 D4 + D6 3 | | 38 D5 + _CE 4 | | 37 _M1 + C/_D 5 | | 36 _IORQ + B/_A 6 | | 35 RD + PA7 7 | | 34 PB7 + PA6 8 | | 33 PB6 + PA5 9 | | 32 PB5 + PA4 10 | Z80-PIO | 31 PB4 + GND 11 | | 30 PB3 + PA3 12 | | 29 PB2 + PA2 13 | | 28 PB1 + PA1 14 | | 27 PB0 + PA0 15 | | 26 +5V + _ASTB 16 | | 25 CLK + _BSTB 17 | | 24 IEI + ARDY 18 | | 23 _INT + D0 19 | | 22 IEO + D1 20 |_____________| 21 BRDY + ***************************************************************************/ #ifndef __Z80PIO_H__ |