26
XR-1100
Pin No.
Pin Name
I/O
Description
51
VOL-CL
O
Serial data transfer clock signal output to the electrical volume (IC400)
52 to 54
NC
O
Not used (open)
55
POWER-ON
O
Power on/off control signal output “H”: power on
56
AM-ON
O
AM system power supply on/off control signal output terminal “H”: AM on
57 to 60
NC
O
Not used (open)
61
FM-ON
O
FM system power supply on/off control signal output terminal “H”: FM on
62
AMP-ON
O
Standby on/off signal output to the power amplifier (IC500) “L”: standby, “H”: amp on
63 to 65
NC
O
Not used (open)
66
INT
I
Connected to ground
67
CE
I
Accessory switch on/off detection signal input terminal
“L”: accessory off (hold mode), “H”: accessory on
68
RESET
I
System reset signal input terminal “L”: reset Not used (pull up)
69
ADI
I
Connected to ground
70
IFIN
I
FM and AM intermediate frequency detection signal input from the FM/AM tuner unit (TU100)
71
NC
I
Not used (fixed at “L”)
72
SNS
I
Power fail detect signal input terminal “L”: power fail occurred
Whether the power fail occurred is judged in the backup mode
73
VDD
—
Power supply terminal (+5V)
74
FMIN
I
FM local oscillator input from the FM/AM tuner unit (TU100)
75
AMIN
I
AM local oscillator input from the FM/AM tuner unit (TU100)
76
VSS
—
Ground terminal
77
EO
O
Main charge-pump control signal output terminal
78
NC
O
Not used (open)
79
TEST1
I
Connected to ground
80
XOUT
O
System clock output terminal (4.5 MHz)
Summary of Contents for XR-1100
Page 43: ...9 XR 1100 MEMO ...
