Sony SS-CM90 Service Manual page 92

Pin No. Pin Name
51 XIFCS
52 VSS
53 X1
54 X0
55 VCC
56 CKSW1
57 OCSW1
58 CS0X
59 CS1X
60 CS2X
61 CS3X
62 CS4X
63 CS5X
64 C
65, 66 CS6X, CS7X
67 XWAIT
68 BGRNTX
69 BGR
70 XRD
71 XWRH
72 XWRL
73 NMIX
74 HSTX
75 VSS
76 XFRRST
77 CPUCK
78 OCSW2
79 XDACX
80 VESCS/X39CS
81 48/44.1K
82 WIDE
83 MAMUTE
84 XLDON
85 to 100 HD0 to HD15
101 VSS
102 to 109 HA0 to HA7
110 VCC
111 to 118 HA8 to HA15
119 VSS
120 HA16
I/O
O Chip select signal output to the system controller
—
Ground terminal
O
System clock output terminal (16.5 MHz)
I
System clock input terminal (16.5 MHz)
— Power supply terminal (+3.3V)
I
Disc tray open/close detect switch input
I
Disc tray open/close detect switch input
O
Chip select signal output to the program ROM
— Not used
O
Chip select signal output to the AV decoder
O
Chip select signal output to the AV decoder
O
Chip select signal output to the ARP
O Chip select signal output to the servo DSP
—
Capacitor connected terminal
O
Chip select signal output terminal Not used
I
Wait signal input from the ARP and AV decoder
— Not used
—
Not used
O
Read enable signal output
O
High byte write enable signal output
—
Not used
—
Not used
—
Not used
—
Ground terminal
I
Reset signal input from the system controller "L": reset
O
CPU clock signal output terminal Not used
—
Not used
—
Not used
O
Chip select signal output to the audio DSP
O
Sampling frequency selection signal output terminal "L": 48 kHz, "H": 44.1 kHz
O
Wide signal output terminal Not used
I
System OK signal input from the system controller
O
LD control signal output ton the RF amp
I/O
Two-way data bus
—
Ground terminal
O Address signal output
—
Power supply terminal (+3.3V)
O
Address signal output
—
Ground terminal
O Address signal output
Description
HCD-M90
91