Sony XR-M500R Service Manual page 49

Pin No. Pin Name
53 VSS
54, 55 NC
56 PD6
57 BOOT
58 VCC
59 NC
60
TX/LCD-DATA
61 SP-SI
62 RX
63 SP-SCK
64 LCD-SCK
65 VSS
66 LCDCE0
67, 68 VSS
69 LCD-INH
70 LCDCE1
71 NC
72 to 78 P27 to P21
79 FL W
80 FWE
81 RES
82 NMI
83 STBY
84 VCC
85 XTAL
86 EXTAL
87 VSS
88 PF7
89 VCC
90 to 96 PF6 to PF0
97 UNI-SO
98 UNI-SI
99, 100 VSS
101 UNICKI
102 P53/ADTRG
103 AVCC
104 VREF
105 SPE-IN
P41/AN1 to
106 to 110
P45/AN5
I/O
—
Ground terminal
O Not used (open)
O Not used (open)
I
Serial data input at the flash memory writing mode "L" is input when writing change
—
Power supply terminal (+5V)
O Not used (open)
Display serial data output to the liquid crystal display driver (IC901, 902)
O
Output terminal for UART transfer data when writing into internal flash memory data
I Spectrum analyzer display serial data input terminal Not used (fixed at "L")
I Input terminal for UART transfer data when writing into internal flash memory data
Spectrum analyzer display serial data transfer clock signal input terminal
I
Not used (fixed at "L")
O Display serial data transfer clock signal output to the liquid crystal display driver (IC901, 902)
—
Ground terminal
O Chip enable signal output to the liquid crystal display driver (IC901) "H" active
— Ground terminal
Blank indicate control signal output to the liquid crystal display driver (IC901, 902)
O
"L": no display
O Chip enable signal output to the liquid crystal display driver (IC902) "H" active
O Not used (open)
O Not used (open)
O
Flash memory data write control signal output terminal "H": active
I
Flash memory data write enable signal input terminal
System reset signal input from the reset signal generator (IC602) and reset switch (S901, 902)
I
"L" is input for several 100 msec after power on, then it changes to "H"
Non maskable interrupt input terminal
I
Connect the backup detect circuit (BU-IN pin rl) in this set
I Hard ware standby input terminal
—
Power supply terminal (+5V)
O System clock output terminal (18.432 MHz)
I System clock input terminal (18.432 MHz)
— Ground terminal
O Not used (open)
—
Power supply terminal (+5V)
O Not used (open)
O
Serial data output to the SONY bus interface (IC501)
I
Serial data input from the SONY bus interface (IC501)
—
Ground terminal
I Serial clock signal input from the system controller (IC601)
O Not used (open)
—
Power supply terminal (+5V) (for A/D converter)
I
Reference voltage (+5V) input terminal (for A/D converter)
I Peak hold voltage detect signal input from the BA3834F (IC102)
I Not used (fixed at "L")
Description
Not used (pull down)
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