29
A-S1000
A-S1000
■
IC DATA
IC502:
M38039xxxxx (FRONT P.C.B.)
Single chip 8-bit microprocessor
THM_L
PRD_R
PRD_L
RY_SPA
RY_SPB
/ICEX
/CSEX
EV1_CE
EV1_CL
EV1_DA
EX_DI
232_RTS
232_CTS
232_TXD
232_RXD
RY_PWR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PSVA1
PSVA2
EXAD
MODEL
EXCL
4051C
4051B
4051A
STBY_CNT
REM
EXDT
MVOL+
MVOL-
RY_HP
RY_UNBAL
RY_BAL_GAIN
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
PWR_DET
CNVSS
/RESET
PRI_R
PRI_L
XIN
XOUT
VSS
LED_PWR
RY_CD
RY_TU
RY_L1
RY_L2
MUTE_PRE
MUTE_REC
RY_BAL
THM_R
HP_PRDR
HP_PRDL
EX_DI
PRV1
AVSS
VREF
VCC
RY_PHONO
RY_MMMC
RY_BYP
RY_DIR
EV_MT
EV2_DA
EV2_CL
EV2_CE
M38039xxxxx
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
P6 (8)
A/D
converter
(10)
PWM
(8)
I/O port P6
5 6 7 8 9 10 11
4
3
2
P0 (8)
I/O port P0
50 51 52 53 54 55 56
49
P2 (8)
I/O port P2
(LED drive)
34 35 36 37 38 39 40
33
P5 (8)
INT
3
V
REF
X
IN
Main
clock
input
Main
clock
output
Sub-clock
input
Sub-clock
output
AV
SS
INT
00
INT
01
INT
41
INT
1
INT
2
INT
40
P3 (8)
I/O port P5
I/O port P3
13 14 15 16 17 18 19
57 58 59 60 61 62 63 64
12
P4 (8)
I/O port P4
21 22 23 24 25 28 29
20
SI/O2
(8)
ROM
A
MICROPROCESSOR
RAM
Clock generating circuit
SI/O1
(8)
D/A
converter
2 (8)
D/A
converter
1 (8)
SI/O3
(8)
P1 (8)
I/O port P1
42 43 44 45 46 47 48
41
X
Y
S
PC
L
PC
H
PS
Timer Y (8)
Prescaler Y (8)
Timer Z (16)
Prescaler X (8)
Prescaler 12 (8)
Timer X (8)
Timer 2 (8)
Timer 1 (8)
30
27
26
X
CIN
28
X
OUT
31
X
COUT
29
V
SS
Data bus
32
V
CC
CNV
SS
CNTR
0
CNTR
1
CNTR
2
RESET
Reset input
1