Aiwa XR-M88 Service Manual page 16

Pin No. Pin Name
90 VDD2
91, 92 P04, P05
93 O-MUTE
94 P07
95-97 P10-12
98 O-MASI
____________
99 I-MASO
100 I-MACLK
I/O
— Microprocessor power supply. (µ-com 5V).
— NC.
O Main mute output.
—
NC.
—
O Serial data output to master microprocessor.
I Serial data input from master microprocessor.
I Transfer clock input from master microprocessor.
24
Description