Denon AVR-3805

23
23
AVR-3805 / AVC-3890
M30620FC Terminal Function
75
76
100
1
25
26
50
51
M30620FC (AD: IC825)
Pin Pin Name Symbol I/O Type Det
Op
(Int.)
Op
(Ext.) Res Function
1 P94/TB4 DSP MS O C - - - Z DSP control pin
2 P93/TB3 DACCS O C - - - Z DAC control pin (AD1854: Chip select)
3 P92/SOUT3 DACMDI O C - - - Z DAC control pin (AD1854)
4 P91/SIN3 DIGITAL REC INH O C - - - Z DIGITAL INH: Control
5 P90/CLK3 DACMC O C - - - Z DAC control pin (AD1854)
6 BYTE BYTE - - - - - - GND (Ext. data bus bit width switching, 16bit: L)
7 CNVCS CNVSS - - - - - -
Single-chip/Micro-processor mode switching
(Normal single-chip: L, Rewrite boot program start:
H input set)
8 P87 DAC-RESET1 O C - - - Z
DAC
con
t
ro
l
p
i
n
("L"
:
P
ower
D
own mo
d
e,
"
↑
(rising edge)": Reset, "H": Normal)
9 P86 NC O C - - - Z Not used
10 RESET RESET I - - - - L Reset input (Reset: L)
11 XOUT X1 O - - - - - Oscillator connection
12 VSS VSS - - - - - - GND
13 XIN X2 I - - - - - Oscillator connection
14 VCC VCC - - - - - - +5V
15 P85/NMI _NMI I - - - - - Not used (Fixed to H)
16 P84/INT2 INT1 I - E
↓
&L - Eu Z DIR control pin (LC89057W-E)
17 P83/INT1 ACK I - E
↓
&L - Ed Z
M
a
i
n
/S
u
b
-
μ
com comm. con
t
ro
l
i
npu
t
(ACK from MAIN
μ
com L return)
18 P82/INT0 B.DOWN I - Lv - Eu Z Power down detect (Power down: L)
19 P81 ADC RESET O C - - Eu Z A/D control pin (Reset: L)
20 P80 OSR O C - - Eu Z A/D control pin (PCM1804) 96kHz: H
21 P77 DIGITAL POWER O C - - Ed Z DIGITAL power on/off switching (H: ON)
22 P76 FGAIN O C - - Ed Z IV AMP GAIN switching control output (Subwoofer YES: L)
23 P75 AD OVER L I - Lv - Eu Z AD OVERLOAD detect control (For L ch OVERLOAD: H)
24 P74 AD OVER R I - Lv - Eu Z AD OVERLOAD detect control (For R ch OVERLOAD: H)
25 P73/CTS2 MIC ON O C - - - Z MIC input used: H Others: L
26 P72/CLK2 P.D MUTE O C - - - Z
MIC/AD input switching control pin
MIC pin input, DIGITAL POWER OFF: L Others: H
27 P71/RXD2 VPP O C - - - - Normal: H Writing flash ROM for DSP: L
28 P70/TXD2 RSVDSP O C - - - - Not used