KDC-D301
6
MICROCOMPUTER'S DESCRIPTION
Pin No. Pin Name
I/O Description
Processing Operation
51-59 NC
O
Not used(N.C.)
60
RESET
I
Reset input
"Lo": System reset
61
REQH
I
Communication request from H/U
"Lo": Communication request
62
COMM SW
I
5-line communication previous/new switch input
"Lo": New type, "Hi": Previous type
63
SW2
I
12cm disc detection terminal(8cm/12cm)
When 12cm disc is detected, the input becomes
"Lo" temporarily. (Watched in SW1 "Lo")
64
SW1
I
Loading detection (Loading start)
"Lo": Loading start
65
FLIP SW
I
Panel tilting detection input
"Hi": Panel tilted or detached, "Lo": Panel closed
66
CHCON
I
Changer control input from H/U
"Hi": Standby mode, "Lo": Operation mode
67
VSS0
-
Ground connection terminal
Connected to ground lines.
68
VDD1
-
Positive power supply connection terminal
Connected to BU 5V lines.
69
X2
-
Main clock resonator connection terminal
70
X1
I
Main clock resonator connection terminal
71
IC(VPP)
-
Not used(connected to ground lines)
72
XT2
-
Sub clock resonator connection terminal
Not used(N.C.)
73
XT1
I
Sub clock resonator connection terminal
Not used(connected to BU 5V lines)
74
VDD0
-
Positive power supply connection terminal
Connected to BU 5V lines.
75
AVREF0
I
A/D converter reference voltage input terminal
Connected to REF CON terminal
76
BPF IN
I
Level detection input from BPF IC out
77
ILLUMI ON
O
ILL+B AVR control output
"Hi": AVR ON, "Lo": AVR OFF
78
NC
O
Not used(N.C.)
79
SW3
I
Down & limit switch detection input
"Hi": Chucking, "Lo": Pickup most inner position
80
B UP
I
Momentary power down detection input
"Hi" : When momentary power down detected or
BU OFF
"Lo" : BU ON
