26
AVR-3803/1083/AVC-3570
24 AM0 AM0 I Operation mode (Fixed to H)
25 DVCC DVCC +3V
26 X2 XOUT O Oscillator connection
27 DVSS DVSS GND
28 X1 XIN I Oscillator connection
29 AM1 AM1 I Operation mode (Fixed to H)
30 RESET _RESET I Lv Eu L Reset input
31 P96/XT1 ADC RESET O N Eu Z A/D control pin (Reset: L)
32 P97/XT2 OSR O N Eu Z A/D control pin (PCM1804), 96kHz: H
33 EMU0 Not used O Ed Z Open
34 EMU1 Not used O Ed Z Open
35 PA0/INT1 Not used I Ed Z Not used (GND)
36 PA1/INT2 Not used I Ed Z Not used (GND)
37 PA2/INT3 Not used I Ed Z Not used (GND)
38 PA3/INT4 Not used I Ed Z Not used (GND)
39 PA4 Not used I Ed Z Not used (GND)
40 PA5 Not used I Ed Z Not used (GND)
41 PA6 Not used I Ed Z Not used (GND)
42 PA7 Not used I Ed Z Not used (GND)
43 ALE ALE O C Z Open
44 P00/AD0 I/O1 I/O C Z DSP comm. pin (ADSST-MEL100:D16)
45 P01/AD1 I/O2 I/O C Z DSP comm. pin (ADSST-MEL100:D17)
46 P02/AD2 I/O3 I/O C Z DSP comm. pin (ADSST-MEL100:D18)
47 P03/AD3 I/O4 I/O C Z DSP comm. pin (ADSST-MEL100:D19)
48 P04/AD4 I/O5 I/O C Z DSP comm. pin (ADSST-MEL100:D20)
49 P05/AD05 I/O6 I/O C Z DSP comm. pin (ADSST-MEL100:D21)
50 P06/AD06 I/O7 I/O C Z DSP comm. pin (ADSST-MEL100:D22)
51 P07/AD07 I/O8 I/O C Z DSP comm. pin (ADSST-MEL100:D23)
52 P10/AD8/A8 ROM_RST1 O C Ed Z Memory reset for DSP (Reset: L)
53 P11/AD9/A9 DSP1_RS O C Ed Z DSP reset output pin (Reset: L)
54 P12/AD10/A10 DSP I/0 POWER O C Eu Z Power on: L (10ms later on after digital power on)
55 P13/AD11/A11 DSP OSC ON O C Z ON: H (20ms later on after digital power on)
56 P14/AD12/A12 IRQ1_B1(DSP_REQ1) O C Z
DSP (ADSST-MEL100:IRQ 1_) host I/F interrupt
request output, REQ: L
57 P15/AD13/A13 DINA O C Z Digital input switching
58 P16/AD14/A14 DINB O C Z Digital input switching
59 P17/AD15/A15 DINC O C Z Digital input switching
60 P20/A0/A16 DACCS O C Z DAC control pin (PCM1791: Chip select)
61 P21/A1/A17 DACMDI O C Z DAC control pin (PCM1791)
62 DVSS DVSS GND
63 NMI NMI I Fixed to H
64 DVCC DVCC +3V
65 P22/A2/A18 DAC-RESET1 O C Z
DAC control pin
(L: Power down mode, ↑: Reset, H: Normal)
66 P23/A3/A19 DACMC O C Z DAC control pin (PCM1791)
67 P24/A4/A20 Not used I Z Not used (GND)
68 P25/A5/A21 DRECC O C Z Digital RECOUT switching
69 P26/A6/A22 Not used I Z Not used (GND)
70 P27/A7/A23 Not used I Z Not used (GND)
71 P30/RD/BOOT _BOOT I Eu Z
With “L” input set during reset, rewrite boot program
start
72 P31/WR FLAG 0A(WRITE1) O C Eu Z DSP comm. control pin (DATA WRITE: H)
73 P32/HWR DSP_BOOT I Eu H(Iu)
DSP or SUB rewrite boot program
(When DSP rewrite “L” input)
74 P33/WAIT Not used I Ed H(Iu) Not used (GND)
75 P34/BUSRQ Not used I Ed H(Iu) Not used (GND)
76 P35/BUSAK Not used I Ed H(Iu) Not used (GND)
Pin
No.
Pin Name FunctionI/OSymbol
Type
Det
Op
(Int.)
Op
(Ext.)
Res
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
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