User Guide

E
N.EOOOF
I
Terminal
No.
Symbol
Name
vo
Terminal Function
42
AD7
vo Data bus
7. Mask item... fixed to
"L"
43 AD6 t/o Oata
bus
6.
Mask item... fixed
to
"L"
44 AD5 VO
Data bus
5.
Mask item... fixed to
"L"
45 AD4 vo Data
bus 4. Mask
item... fixed
to
"L"
46 AD3 vo Data bus 3.
Mask item... fixed
to
"L'
47 AD2 Data bus
2. Mask ilem... fixed to
"L'
48
AD1
Data
bus
1. Mask
item... fixed
to
"L".
49 ADO
t/o Data
bus 0.
Mask
item... fixed
to
"L"
5U
ASTB
Pulse for
address
latch. Mask item... fixed to
"L'
51 Vss 0V
power
supply.
az Vss 0V
power
supply.
5J
Not connected.
u MODE Memory
mode
selection
terminal. Use
extemal
ROM
at
"H",
use mask ROM at
"L".
Mask item...
"L",
external
ROM
"H".
3J Not
connected.
Not used.
Not
used.
58
Not
used.
Not used.
OU
Not
connected
61 Not used.
62
Not used.
Not used.
64 Not used.
65 Voo
+5v
power
supply.
66 Voo +5v
power
supply.
OI
PITl CD-1
pitch
volume
input.
68 PT2 CD-2
pitch
volume input.
I Notused.
Fixed to
"L"
70 Not connected.
71 Not used.
Fixed to
"L"
72
Not
used.
Fixed to
"L".
/J Not used. Fixed to
'L'.
74
Not
used.
Fixed to
'L".
Not used.
Fixed
to
"L"
TO
AVoo
+5v
power
supply
for A,/D converter.-
aa
AVREFl
+5V. A,/D converter
reference voltaqe.
78
Not connected.
79 AVss
0V
power
supply
for ey'D converter.
80 o
Not used.
81
Not used.
82
AVREF2 +5V.
D/A converter
reterence voltage.
83 AVREF3 0V.
D/A converter
reterence
voltage.
u
Not connected.
85
KINl
O
CD-1
key
data
0.
86 KINl1
CD-1 kev data
1
87
KIN12 CD-1
kev
data
2.
88
KIN13 CD-1 key data
3.
89
KIN20 CD-2
key
data
0.
90
KIN21 CD-2
key data
1
91
KIN22 CD-2
kev
data
2.
92
KIN23 CD-2
key data 3.
93
RXD- Serial
interface
receotion dala.
94 TXD- o
Serial
interface transmission data.
23