Denon AVC-1909, Service Manual

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AVR-1909/789, AVC-1909
87 P107/AN7 DSPRST O C - - - Z DSP (ADSP-21367) reset output pin (reset:L)
88 P106/AN6 - O C - - - Z Not used
89 P105/AN5 DSPROMRST O C - - Ed Z DSP memory reset(reset:L)
90 P104/AN4 - O C - - - Z Not used
91 P103/AN3 DSPFLAG0 I - Lv - Ed Z DSP control pin (ADSP-21367)
92 P102/AN2 DSPICS O C - Eu Z DSP control pin (ADSP-21367)
93 P101/AN1 DSP FLAG1 I - - - - Z Not used
94 AVSS AVSS - - - - - - AD GND
95 P100/AN0 VPLDCLK O - - - - Z VIDEO PLD control pin
96 VREF VREF - - - - - - AD ref. +3.3V
97 AVCC AVCC - - - - - - AD +3.3V
98 P97/SIN4 DSPMISO I - Lv - Eu Z DSP control pin (ADSP-21367)
99 P96/SOUT4 DSPMOSI O C - - Eu Z DSP control pin (ADSP-21367)
100 P95/CLK4 DSPICLK O C - - Eu Z DSP control pin (ADSP-21367)
Pin Pin Name Symbol I/O Type Det
Op
(Int.)
Op
(Ext.)
Res Function
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” = Input port
“O” = Output port
Type : Composition of port in case of output port.
“C” = CMOS output
“N” = NMOS open drain output
“P” = PMOS open drain output
Op : Pull up/Pull down selection information.
“Iu” = Inner microcomputer pull up
“Id” = Inner microcomputer pull down
“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” = Outputs High Level at reset
“L” = Outputs Low Level at reset
“Z” = Becomes High impedance mode at reset
STBY : State of port when STANDBY mode.
“O/L” = Output port and “L”
“I”
= Input port
Stop : State of port when Stop mode.
“O/L” = Output port and “L”
“I”
= Input port