19
30
NO ORIGIN NAME
I/O
FUNCTION
NO
ORIGIN NAME
I/O
FUNCTION
1
/PM
/CE
O
EXT PROM CHIP ENABLE
41
P1.4
MT1
I
PRODUCT TEST PINO
2
/DM
/UCS
O
INTERFACE CHIP SELECT
42
P1.3
MT2
I
PRODUCT TEST PIN1
3
/RD7
/URD
O
INTERFACE CHIP READ
43
P1.2
MT3
I
PRODUCT TEST PIN2
4
/WR
/UWR
O
INTERFACE CHIP WRITE
44
P1.2
TRO_SW
O
TRO CONTROL SWITCH
5
VLD
VLD
I
VOLTAGE LEVEL DETECT
45
P1.0
STEP_P1
O
STEP MOTOR ENABLE
6
P5.1/AS
N.C.
O
N.C
46
P0.7/ADC3
0.5Vref
O
RESET CONTROL
7
P5.0/
N.C.
O
N.C
47
R0.6/ADC2
FMO
I
FMO
8
P4.7/CS3
/XCE
O
DSP CHIP SELECT
48
P0.5/ADC1
/EJECT
I
EJECT BUTTON
9
P4.6/CS2
/XCM
O
DSP FIRST COMMAND
49
P0.4/ADC0
/PLAY
I
N.C
10
P4.5/CS1
/XRD
O
DSP READ
50
AVREF
AVREF
I
ADC REFERENCE VOLTAGE
11
P4.4/CS0
/XWR
I/O
DSP WRITE
51
P0.3
SLEEP_SW
O
SELLP MODE CONTROL
12
VDD1
VDD
I
VCC
52
VSS2
VSS2
I
VSS2
13
VSS1
VSS
I
GND
53
VDD2
VDD2
I
VDD2
14
Xout
Xout
O
CRYSTAL OUTPUT
54
P0.2
EMPHA
O
AUDIO EMPHASIS CONTROL
15
Xin
Xin
I
CRYSTAL INPUT
55
P0.1
/XRST
O
OUTPUT DEVICE RESET
16
VPP/EA
EA
I
ADDRESSING MODE SELECT
56
P0.0
LED_BUSY
O
LED BUSY CONTROL
17
P4.3
BUS3
I/O
DSP COMMAND BUS3
57
D0
D0
I
EXT PROM DATA0
18
P4.2
BUS2
I/O
DSP COMMAND BUS2
58
D1
D1
I
EXT PROM DATA1
19
/RESET
/RESET
I
MICOM RESET
59
D2
D2
I
EXT PROM DATA2
20
P4.1
BUS1
I/O
DSP COMMAND BUS1
60
D3
D3
I
EXT PROM DATA3
21
P4.0
BUS0
I/O
DSP COMMAND BUS0
61
D4
D4
I
EXT PROM DATA4
22
PWM1
PWM1
O
PWM CONTROL
62
D5
D5
I
EXT PROM DATA5
23
PWM0
PWM0
O
PWM CONTROL
63
D6
D6
I
EXT PROM DATA6
24
P3.5
CENT
O
DRIVE IC RESET
64
D7
D7
I
EXT PROM DATA7
25
P3.4
CENT
O
CENTER SERVO CONTROL
65
A0
A0
O
EXT PROM ADDRESS 0
26
P3.3
SPM_FG
I
SPINDLE MOTOR CONTROL
66
A1
A1
O
EXT PROM ADDRESS 1
27
P3.2
SPIN_CTL
O
CPINDLE BRAKE CONTROL
67
A2
A2
O
EXT PROM ADDRESS 2
28
P3.1
/OPEN
I
OPEN LIMIT SWITCH
68
A3
A3
O
EXT PROM ADDRESS 3
29
P3.0
/CLOSE
I
CLOSE LIMIT SWITCH
69
A4
A4
O
EXT PROM ADDRESS 4
30
P2.7/INT7
RF_CON
O
PLL CONTROL
70
A5
A5
O
EXT PROM ADDRESS 5
31
P2.6/INT6
N.C.
I/O
N.C
71
A6
A6
O
EXT PROM ADDRESS 6
32
P2.5/INT5
/SCOR
I
DSP SYNC INTERRUPT
72
A7
A7
O
EXT PROM ADDRESS 7
33
P2.4/INT4
TR_OUT
O
TRAY OPEN CONTROL
73
A8
A8
O
EXT PROM ADDRESS 8
34
P2.3/INT3
TR_IN
O
TRAY CLOSE CONTROL
74
A9
A9
O
EXT PROM ADDRESS 9
35
P2.2/INT2
D_INT
I
ROM DECODER INTERRUPT
75
A10
A10
O
EXT PROM ADDRESS 10
36
P2.1/INT1
FLGC
I
FOCUS O.K.
76
A11
A11
O
EXT PROM ADDRESS 11
37
P2.0/INT0
FLGA
I
TRACKING EPROR ZERO
77
A12
A12
O
EXT PROM ADDRESS 12
38
P1.7
MON
O
SPINDLE MOTOR ON/OFF
78
A13
A13
O
EXT PROM ADDRESS 13
39
P1.6
SPM_DIR
I
N.C
79
A14
A14
O
EXT PROM ADDRESS 14
40
P1.5
AMUTE
O
AUDIO MUTE CONTROL
80
A15
A15
O
EXT PROM ADDRESS 15
PIN DESCRIPTIONS
SCR-140(A4)-en 99.3.15 8:48 AM ˘
`
19
Summary of Contents for SC-140
Page 2: ... Samsung Electronics Co Ltd MARCH 1999 Printed in Korea Code No BG68 00045A Electronics ...
Page 48: ...8 7 Operational Position Diagram SCR 140 A3 99 3 15 11 19 AM 4 ...
Page 49: ...10 9 Operational Position Diagram SCR 140 A3 99 3 15 9 1 AM 5 ...
Page 50: ...12 Operational Position Diagram 11 SCR 140 A3 99 3 15 9 1 AM 6 ...
Page 51: ...24 23 Circuit Diagram SCR 140 A3 99 3 15 9 0 AM 3 ...