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1.4.0 PROCESSING UNIT DATA FLOW
15
r-----t---~-
8
Control
Main
Storage
~
)
(1 byte)
Storage
r--
~
,
12bY',,1
I
I
SAR
I
Processing Unit
I
~r--15
~~
Stg
Sys Bus Out Low
_
..,........, Gate
~~B
r===={>~ 7
-==
=
===C>
Stg
Sys Bus Out
~
Gate
r--
I~
High
f>~o
High
. - - -
I
I
Display Low Byte
J'-,.
I
~
I
. . .
Sys Bus Out Low
I
:f>
~~~========~====~~==========~
. . .
~
1-4
T
1f
~====~~====~~~===========================I-
=
~I========II======~
----
i~
0
5}7
o '\/
7
8 V
15
8\
7\ 715
I
X-High
V-High
I
~
X-Low
I
I
V-Low
1
r - -
JI
~
~
r
t>
Adr
I
AdrSw
Comp
....
\l
[>
Adr
\ / \ /
I
Comp
V
:f>
ALU
ALU
I
High
Low
I
' - - - -
7
I
0
8
15
I
-
-
- -
I
,7
\7
~
VV~
I
pB=
r - -
I
Event Ind
:{>
Display
ALU Gate
I
I
ALU Gate
I
I
High
Byte
High
Low
I
OR
:f>
0
7
8
15
~
t::=::::f>
Sys Bus Out High
.....
Status
' - - - -
~
$
CK 1
.....
~
1 Gate
r - - - -
Adr Sw 1 & 2
r
0
7
8
15
....
....
1/
~
r - -
Adr Sw 3 & 4
-">
F===f>
OR
=-
Select
-..
32 LSRs
Status
...
Status
r=t>
I/O Clocks
r
2 Gate
....
V
' - - - -
' - - - - -
0
JI
7 8
15
Channel SBI
<
:J:====
-
--
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