Yamaha RX-V559 Service Manual page 53

RX-V559/HTR-5950/DSP-AX559
IC56 : LC89057W-VF4-E (DSP P.C.B)
Digital Audio Interface Transceiver
No. Name I/O Function
1) Input/output I or O = -0.3 to 3.6V, Is = -0.3 to 5.5V
2) Pins 32 and 33 are latch address setting input pins when pin 41 = "L".
3) Pin 34 is a demodulation function master or slave setting input pin when pin 41 = "L".
4) Pin 35 is a modulation function or general-purpose I/O function switch setting input pin when pin 41 = "L".
5) Perform ON/OFF for all power supplies with the same timing as a latch-up countermeasure.
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