IBM XT 5160

~
I
~
00
rJJ.
~
r.fJ
~
~
=
==
o
~
..
Q.
(SH.10,11)
I10CHROY
(SH.5)
XIOR'
(SH.5)
XIOW'
(SH.4)
DACKOBRD'
(SH.5)
XMEMR'
(SH.3)
DMACS'
(SH.1)
LOCK'
(SH.1)
Si'
(SH.1)
SCi
(SH.4)
HRQDHA
(SH.1)
RESET
(SH.5)
CLK
(SH.1)
N.P.NPI
(SH.9)
N.P.INSTL5w
(SH.6) P(j(i
(SH.5)
XD7
(SH.3)
WRTNMIREG'
(SH.10,11)
1I0CHCK'
+
(SH.9) ENABLEI/OCK'
(SH.1)
CLK88
LS04
2
U89
CLK'
, + XMEHR (SH.6)
~;~ YMEHR' (SH.3,11)
,...----------------- RDY'IWAIT (SH.1)
RDYTODMA (SH.4)
DHAAEN'
(SH.4,5)
AENBRD
(SH.1,5)
AEN'
(SH.1,3)
DMAWAIT'
(SH.1)
HOLDA
(SH.4)
RESETDRV'
(SH.8,9)
RESETDRV (SH.10,11)
NMI (SH.1)
• I/O CHCK (SH.9)
LS04
8
DCLK (SH.4)
256/640K System Board (Sheet 2 of 11 )