Sharp PC-1500 - Page 108

All and more about Sharp PC -1 500 at http:/lwww.PC-1500.info
4-3-2. 60-pin connector
Pin no
Signal name T
De sc r iption
1 A07
Address bus
2
AD6 Address bus
3
110 5
Address bus
4
AD4 Address bus
5
AD3
.!
Address bus
6
AO?
-
Address bus
7 A01 Addre ss bus
ADO
-
8
Address bus
.
9 PBO
-
Nol used
10 PC7 Nol used
11
vcc vcc
12 v cc
-
vcc
13 NC
NC
14
NC NC
~-
15 PV
Ch ~ se lect
16 PU c117Pse l ect
17 D7 Data bus
18
06 Data bus
19 05 1- Da1ab us
20
I·
D4 Data bus
21
03 Data bus
22 02 Data bus
23
DI
Data bus
24
DO Data bus
25
iN"HiBii'
.
Pr ohi bll s ROM se lect of the PC · 1500. whO n connected lo GNO.
26 WEX
E •t ernal WA IT sii)nal
27
C MT IN
Casse lf e data i ii£u t
28
Wl
WAI T cond1t1on input
29
CMTOUT Casselle data output
30 INT
In t errupt request to CPU
3t AD8 Address bus
32
AD9 Address bus
33 ADfO Address bus
34
A011 Address bus
35
A012
Address bus
36 AD1 3 Address bus
37 AU14 Address bus
38
A015
.
Ad dr ess bus
39
P BI Not used
•O NC
-
NC
41 v cc
-
vcc
42
vcc
VCC
43 F·GNU Frame GND
44
VBl\l VBAT
45 VBAT
VBAT
46 VBAT VBAT
• 7 VBAT VBllT
48
VBAT VBAT
49 NC NC
50
BFO VCC outpul
5t ~OS Cloc k 1n the same phase as lhe LSI u11erna l clock
52
GND GNO
5.3
GNU
-
GND
54 GND
. -
GND
55
GND GND
56 OMEO Chip se lect la king considerat io n of WAIT co nd 1l1on (MEO a rea
designation)
57
R fW
·-·
Mem ory re ad /vuite signal
58 DM El C hip se lect 1a k 1ng c ons ider alion ot WAIT condition (M El ar ea
designation )
59 MCI ME 1 area designalion
60 OD Ouj"j)u1 disable
NOTE : PB O of No. 9 may bo NC depending on production month .
PB l of No 39 may be NC depending on production month
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