21
AVR-2805/985/AVC-2890
85 P01/D1 FLAG 1A I - Lv - Eu Z Not used
86 P00/D0 FLAG 2A(BUSY1) I - Lv - Eu Z DSP operation check flag (FLAG 2A) Normal="L"
87 P107/AN7 FLAG 3A I - Lv - Eu Z
Special Flag for ROM update (DSP: FLAG 3A)
88 P106/AN6 SELCLK1 O C - - - Z
ADC/DIR data, clock switching control terminal
(ADC,PCM 1/4 sampling: L) (PCM ･ DD ･ DTS: H)
89 P105/AN5 u ERR MUTE O C - - - Z Mute control for pop noise prevention (Mute="L")
90 P104/AN4 u BSE(AC3 MUTE) O C - - - Z Digital mute control (AC-3 or DTS decode enable: L)
91 P103/AN3 NC O C - - - Z NC
92 P102/AN2 BUSYEPROM O C - - - Z DSP control pin
93 P101/AN1 DSP_BOOT I - - - Eu H(Iu) DSP rewrite boot program (DSP rewrite: L input)
94 AVSS AVSS - - - - - - AD GND
95 P100/AN0 NC O C - - - Z NC
96 VREF VREF - - - - - - AD ref. +3.3V
97 AVCC AVCC - - - - - - AD +3.3V
98 P97/SIN4 DSP MISO I - - - Eu Z DSP control pin
99 P96/SOUT4 DSP MOSI O C - - Eu Z DSP control pin
100 P95/CLK4 DSP CLK O C - - - Z DSP control pin
Pin
No.
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
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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