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– 102 –
Pin No.
Pin Name
I/O
Function
52
AVREF0
I
Reference voltage (+5V) input terminal (for D/A converter)
53 to 55 KEY0 to KEY2
I
KEY input terminal
Not used (fixed at “L”)
56
SELECT0
I
57
SELECT1
I
58
DISC SENSOR
I
Detection input from the disc in detect sensor (Q501)
“H”: disc in
59
MID SENSOR
I
Detection input from the tray close detect sensor (IC501)
“H”: tray closed
60
I
Not used (fixed at “L”)
61
AVSS
–
Ground terminal (for A/D converter)
62
TEST
I
Test input terminal (fixed at “L” in this set)
63
O
Not used (open)
64
AVREF0
I
Reference voltage (+5V) input terminal (for D/A converter)
65
SRDT
I
Serial data input terminal from the CD text decoder (IC104)
66
O
Not used (open)
67
SCLK
O
Clock signal output terminal to the CD text decoder (IC104)
68
SUBQ
I
Subcode Q data input from the CXD2519Q (IC103) in CD section
69
O
Not used (open)
70
SQCLK
O
Clock signal output terminal to the CXD2519Q (IC103) in CD section
71
XMODE
O
Reset/power down mode setting output terminal to the CD text decoder (IC104)
72
SENSE2
I
Monitor input from the CXA1992AR (IC101) inside status
73
SENSE
I
Monitor input from the CXD2519Q (IC103) inside status
74
DRVDAT
O
Serial data output terminal to display
Not used (open)
75
DRVCLK
O
Clock signal output terminal to display
Not used (open)
76 to 83
A0 to A7
O
Address signal output terminal to the S-RAM (IC601)
84 to 91
D0 to D7
I/O
Two way data bus to the S-RAM (IC601)
92 to 98
A8 to A14
O
Address signal output terminal to the S-RAM (IC601)
99
A15
O
Address signal output terminal to external device
Not used (open)
100
VSS
–
Ground terminal
*1 CD loading motor (M502) control
IN
OUT
BRAKE
RUN IDLE
LD IN (pin
!∞
)
“L”
“H”
“H”
“L”
LD OUT (pin
!¢
)
“H”
“L”
“H”
“L”
Operation
Terminal
*2 CD elevator UP/DOWN motor (M501) control
UP
DOWN
BRAKE
RUN IDLE
STKUP (pin
!¶
)
“L”
“H”
“H”
“L”
STKDOWN (pin
!§
)
“H”
“L”
“H”
“L”
Operation
Terminal
Input terminal for separate/complete type setting of CD section and other sections
“H”: complete type, “L”: separate type (fixed at “H” in this set)
Input terminal for Japanese letter input function setting
“L”: input possible (fixed at “H” in this set)
Summary of Contents for HCD-MD515 - Component For Dhcmd515
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