Denon AVR-1909 Service Manual page 41

Pin Pin Name Symbol
77 P13/D11 LIMITDET
78 P12/D10 -
79 P11/D9 -
80 P10/D8 VOLMUTE
81 P07/D7 MUTEPOWER
82 P06/D6 SYNCDET
83 P05/D5 OSDMUTE
84 P04/D4 -
85 P03/D3 OSDRST
86 P02/D2 OSDSTR
87 P01/D1 OSDCLK
88 P00/D0 OSDDATA
89 P103/AN3 KEY1
90 P102/AN2 KEY2
91 P101/AN1 KEY3
92 P104/AN4 ACKSUB
93 P107/AN7 XMOLINKACTIVE
94 P106/AN6 XMOANTREV
95 P105/AN5 XMIRESET
96 AVSS AVSS
97 P100/AN0 SET_OPTION
98 VREF VREF
99 AVCC AVCC
100 P97/RXD4 SIRIUS RXD
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.
Type : Composition of port in case of output port.
Op : Pull up/Pull down selection information.
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.
STBY : State of port when STANDBY mode.
Stop : State of port when Stop mode.
I/O Type Det
I - Lv
O C -
O C -
O C -
O C -
I - Lv
O C -
O C -
O C -
O C -
O C -
O C -
I - Lv
I - Lv
I - Lv
O C -
I - -
I -
E &L
O C -
- - -
I - Lv
- - -
- - -
I - -
"I" = Input port
"O" = Output port
"C" = CMOS output
"N" = NMOS open drain output
"P" = PMOS open drain output
"Iu" = Inner microcomputer pull up
"Id" = Inner microcomputer pull down
"Eu" = External microcomputer pull up
"Ed" = External microcomputer pull down
"H" = Outputs High Level at reset
"L" = Outputs Low Level at reset
"Z" = Becomes High impedance mode at reset
"O/L" = Output port and "L"
"I" = Input port
"O/L" = Output port and "L"
"I" = Input port
AVR-1909/789, AVC-1909
Op Op
Res Stby Stop
(Int.) (Ext.)
- Eu Z O/L O/L
- Ed O/L O/L
- - - O/L O/L
- - Z O/L O/L
- - Z O/L O/L
- Ed Z O/L O/L
- - Z O/L O/L
- - Z O/L O/L
- - Z O/L O/L
- - Z O/L O/L
- - Z O/L O/L
- - Z O/L O/L
- Eu Z O/L O/L
- Eu Z O/L O/L
- Eu Z O/L O/L
- Ed Z O/L O/L
- Ed Z O/L O/L
- Ed Z O/L O/L
- Eu Z O/L O/L
- - - - -
- - Z O/L O/L
- - - - -
- - - - -
- Ed Z O/L O/L
41
Function
Signal detect input (Detected : H)
Not used
Not used
VOLUME MUTE control pin
For MUTE +B control pin
Sync. detect input for MAIN(H: Ext. synchronized)
OSD control pin
Not used
OSD control pin
OSD control pin
OSD control pin
OSD control pin
KEY1 SIGNAL INPUT
KEY2 SIGNAL INPUT
KEY3 SIGNAL INPUT
MAIN-SUB com comm. control pin
XM RADIO control pin
XM RADIO control pin
XM RADIO RESET control pin
GND
SET OPTION SELECT
VREF
POWER 5V
SIRIUS control pin