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