Denon AVC-1909, Service Manual

Page: 41 / 161

41
AVR-1909/789, AVC-1909
77 P13/D11 LIMITDET I - Lv - Eu Z O/L O/L Signal detect input (Detected : H)
78 P12/D10 - O C - - Ed O/L O/L Not used
79 P11/D9 - O C - - - - O/L O/L Not used
80 P10/D8 VOLMUTE O C - - - Z O/L O/L VOLUME MUTE control pin
81 P07/D7 MUTEPOWER O C - - - Z O/L O/L For MUTE +B control pin
82 P06/D6 SYNCDET I - Lv - Ed Z O/L O/L Sync. detect input for MAIN(H: Ext. synchronized)
83 P05/D5 OSDMUTE O C - - - Z O/L O/L OSD control pin
84 P04/D4 - O C - - - Z O/L O/L Not used
85 P03/D3 OSDRST O C - - - Z O/L O/L OSD control pin
86 P02/D2 OSDSTR O C - - - Z O/L O/L OSD control pin
87 P01/D1 OSDCLK O C - - - Z O/L O/L OSD control pin
88 P00/D0 OSDDATA O C - - - Z O/L O/L OSD control pin
89 P103/AN3 KEY1 I - Lv - Eu Z O/L O/L KEY1 SIGNAL INPUT
90 P102/AN2 KEY2 I - Lv - Eu Z O/L O/L KEY2 SIGNAL INPUT
91 P101/AN1 KEY3 I - Lv - Eu Z O/L O/L KEY3 SIGNAL INPUT
92 P104/AN4 ACKSUB O C - - Ed Z O/L O/L
MAIN-SUB μ com comm. control pin
93 P107/AN7 XMOLINKACTIVE I - - - Ed Z O/L O/L XM RADIO control pin
94 P106/AN6 XMOANTREV I -
E ↓ &L
- Ed Z O/L O/L XM RADIO control pin
95 P105/AN5 XMIRESET O C - - Eu Z O/L O/L XM RADIO RESET control pin
96 AVSS AVSS - - - - - - - - GND
97 P100/AN0 SET_OPTION I - Lv - - Z O/L O/L SET OPTION SELECT
98 VREF VREF - - - - - - - - VREF
99 AVCC AVCC - - - - - - - - POWER 5V
100 P97/RXD4 SIRIUS RXD I - - - Ed Z O/L O/L SIRIUS control pin
Pin Pin Name Symbol I/O Type Det
Op
(Int.)
Op
(Ext.)
Res Stby Stop 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