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Pin No.
Pin Name
39
FEMEAS
40
FEMEAS
41
TEST
42
KEY2
43
KEY3
44
PA6/AN6
45
PA7/AN7
46
PBO/CINT
____
47
SRQ
48
SCK
49
D MS CD
50
D CD MS
51
SQCK
52
SQSO
53
PB7/SO1
54
PE0/EC0
55
PE1/EC1
56
PE2/RMC
57
PE3/NM1
58
PE4/PWM
59
PE5/TO
______
60
SLEEP
__
61
CS
62
SCOR
63
DISC IN
64
P14
65
P15
66
2SPEED
67
ROM
68
FIN
69
RIN
70
PG2
71
SW4
72
VDD
73
NC
74
SW3
I/O
I
Not used
I
FE level (S-curve) measurement A/D input for detecting CD-ROM or CD-RW
I
Test mode select port
I
Test mode key input (A4)
I
Test mode key input (A5)
I
Not used
I
Not used
I
Not used
O
Serial data request output to system microprocessor
I
Clock input from system microprocessor for serial communications
I
Serial data input from system microprocessor
O
Serial data output to system microprocessor
O
Clock output to CXD2587Q for reading SQSO (Not used)
I
Sub-Q serial data input from CXD2587Q
O
Not used
I
Not used
I
Not used
I
Not used
I
Not used
O
Not used
O
Not used
Interrupt input for controlling microprocessor sleep mode (CPU issues STOP command)
I
L: CPU sleep status; H: CPU operational status (sleep mode is released by the leading edge)
Interrupt input for serial communication request from system microprocessor (leading edge is
I
detected)
I
Sub-code sync input from CXD2587Q
Disc insertion detection switch input. Detected during usual operation
I
With 8-cm disc: No disc: L; When inserted: H, After chucking: L (Caution: The no-disc status is
the same as the after-chucking status.)
I
Not used
I
Not used
Standard/double-speed playback mode switching input (set when reset is released)
I
L: Standard play; H: Double speed play
I
CD-ROM mode setting input (set when reset is released)
O
Loading motor driver control output
O
Stop: FIN=L, RIN=L, Loading: FIN=H, RIN=L, Eject: FIN=L, RIN=H
I
Not used
I
End detection when 12-cm disc is ejected
I
Not used
–
Not used
I
Disc, chucking, release detection
Description
-44-
L: Audio mode; H: CD-ROM mode
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