Denon AVR-3808CI Service Manual page 71

Note: Pin No. : Terminal number of microcomputer.
Port Name : The name entered in the data sheet of microcomputer.
Symbol : Symbolized interface function.
I/O : Input or out of part.
"I"
"O"
Type : Composition of port in case of output port.
"C"
"N"
"P"
Op : Pull up/Pull down selection information.
"Iu"
"Id"
"Eu" = External microcomputer pull up
"Ed" = External microcomputer pull down
Det : Indicates judging state of input port. Level detection is "LV"; Edge detection is "Ed"; Detection by both shifting is "E&L";
Serial data detection is "S" (Serial data output is also "S").
Res : State at reset.
"H"
"L"
"Z"
STBY : State of port when STANDBY mode.
"O/L" = Output port and "L"
"I"
Stop : State of port when Stop mode.
"O/L" = Output port and "L"
"I"
= Input port
= Output port
= CMOS output
= NMOS open drain output
= PMOS open drain output
= Inner microcomputer pull up
= Inner microcomputer pull down
= Outputs High Level at reset
= Outputs Low Level at reset
= Becomes High impedance mode at reset
= Input port
= Input port
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AVR-3808CI / AVR-3808 / AVC-3808