64
CDX-P2050VC,P2050VN,P2050VS
Pin No.
Pin Name
I/O
Format
Function and Operation
62
VCC
VDD
63
A7
O
C
SRAM address bus output
64
VSS
GND
65–68
A6-A3
O
C
SRAM address bus output
69
A10
O
C
SRAM address bus output
70
A2 and (EPSK)
O
C
SRAM address bus output and (E2PROM clock output)
71
A1 and (EPDI)
O/I
C
SRAM address bus output and (E2PROM data input)
72
A0 and (EPDO) O
C
SRAM address bus output and (E2PROM data output)
73
NC
Not used
74
ejsw
I
Eject key switch interrupt input
75
mag
I
Magazine lock switch interrupt input
77
NC
Not used
78
I13
O
C
Motor driver control output
79
I2
O
C
Motor driver control output
80
I4
O
C
Motor driver control output
81–88
D0-D7
I/O
C
SRAM data bus
89,90
NC
Not used
91
DSP
I
DISC detect timing input
92
disk
I
Disc detector input
93
ELVPVO
I
Voltage input from ELV position sense
94
ELVREF
I
ELV reference voltage input
95
TRP
I
Tray position input
96
AVSS
I
A/D GND
97
VDIN
Power supply short sensor input
98
VREF
I
A/D converter reference voltage input
99
AVCC
A/D VCC
100
EPCS
I/O
C
E2PROM detect input , Chip select output
*PD5512B
20
21
80
1
Format
Meaning
C
C MOS
NM
Middle resistivity
N channel open drain
TC7SH32FU
1 IN B
2 IN A
3 GND
4 OUT Y
5 VCC
1
30
100
31
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