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Added pinout, not worth mentioning in whatsnew.

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This commit is contained in:
Curt Coder 2008-10-13 14:16:07 +00:00
parent 0fddfa1a44
commit 3d85b66c5e
1 changed files with 24 additions and 1 deletions
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25
src/emu/machine/z80pio.h
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@ -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__