IBM 2025 Maintenance Manual page 147

Pl (Sync)
Pl Access Data is l
P3 Access Data is 0
0-'3"t"H"f"l"tt'~ts;i1i;i.-.
............
~111111111=•1111;11;j~tti;;j;:&:a;i=*t
-
Pl T imc (A-Bl L7B 10)
o_ ..... _.,. __ ,..._ __ ..,_..,... __ .,. __ ..._,_,
O-~~~~H+-t-++-t4H+~~~~~~~~:z:I- +LS. Bus BitO (A-BlE7B02)
L.
S. Read Line
40 ns/Div
2V/cm
- L.
S. Read Line (A-Bl E5B09)
Figure 1-136. LS Bit Output (Pl Access Data is 1, P3 Access Data is 0)
P8 Time
(Sync)
0 - f"'Tttft+H~ttf:t:tS;:t;;t:ttlifit*:t&:t:tttl;tt:!l:;::tt!:l:i;t:t!;tl
-
P8 Ti me (A-Bl L7B05)
0- -LS. Read Line (A-BlE5B09)
[Reflection Caused
by Write Line]
l--+-~~~~~.+--l~-l--+.--7'1~=1-L.S. Write Line (A-BlE5D09)
Reflection
on LS. Read
Line Caused
by Write Line
L.S. Write Line
40 ns/Div
2V/cm
Figure 1-137. IS Write Line (P8-Tirr.e>
2025 FEMM (7/69)
1-137