Harman Kardon FL 8370 (serv.man3) Service Manual ▷ View online
MCU Pin Arrangement and Functions
Pin Arrangement
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SUBQ
SQCK
P5
5
P5
4
XRST
MDATA
MLAT
MCLK
STAT
P6
6
LKFS
FOK
P6
3
P6
2
P6
1
P6
0
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
P2
1
P2
0
D
A
C
.DA
T
A
D
AC
.CL
K
D
A
C
.L
AT
H
D
C
D
R
L
-
R
L
+
T
R
SW
DS
NS
P7
7
P
OWE
R
P7
5
M
UT
E
P7
3
V
CC
PB
1
/AN
1
PB
0
/AN
0
AV
SS
TEST
X
2
X
1
V
SS
OSC
1
OSC
2
RES
S
0
S
1
S
2
D
N
U
P
S
0
S
1
P2
2
VFD.DO
VFD.DI
VFD.CLK
VFD.LAT
P1
4
P1
5
TRCNT
REMOTE
AV
CC
PB
7
/AN
7
PB
6
/AN
6
PB
5
/AN
5
PB
4
/AN
4
PB
3
/AN
3
PB
2
/AN
2
Figure 1.2 Pin Arrangement
FL8370
45
Internal Block Diagram
Figure 1.1 shows a block diagram.
Port 8
P8
7
P8
6
/FTID
P8
5
/FTIC
P8
4
/FTIB
P8
3
/FTIA
P8
2
/FTOB
P8
1
/FTOA
P8
0
/FTCI
ROM
Port 7
P7
7
P7
6
/TMOV
P7
5
/TMCIV
P7
4
/TMRIV
P7
3
Port 6
P6
7
P6
6
P6
5
P6
4
P6
3
P6
2
P6
1
P6
0
CMOS large-
current port
I
current port
I
OL
= 10 mA
@V
OL
= 1V
P5
7
/
INT
7
P5
6
/
INT
6
/TMIB
P5
5
/
INT
5
/
ADTRG
P5
4
/
INT
4
P5
3
/
INT
3
P5
2
/
INT
2
P5
1
/
INT
1
P5
0
/
INT
0
Port 1
P1
0
/TMOW
P1
4
/PWM
P1
5
/
IRQ
1
P1
6
/
IRQ
2
P1
7
/
IRQ
3
/TRGV
Port 2
P2
0
/SCK
3
P2
1
/RXD
P2
2
/TXD
Port 3
P3
0
/SCK
1
P3
1
/SI
1
P3
2
/SO
1
P9
0
/FV
PP
*
P9
1
P9
2
P9
3
P9
4
Port 9
PB
0
/AN
0
PB
1
/AN
1
PB
2
/AN
2
PB
3
/AN
3
PB
4
/AN
4
PB
5
/AN
5
PB
6
/AN
6
PB
7
/AN
7
V
SS
V
CC
RES
IRQ
0
TEST
OSC
1
OSC
2
X
1
X
2
CPU
H8/300L
Data bus (lower)
System clock
generator
Subclock
generator
RAM
Timer A
SCI1
Timer B1
Watchdog
timer
A/D converter
SCI3
Timer X
Timer V
14-bit PWM
AV
CC
AV
SS
Port 5
Port B
Data bus (upper)
Address bus
Figure 1.1 Block Diagram
FL8370
46
Pin Functions
Pin Name
Description
1
PB1
No connection
2
PB0
No connection
3
AVSS
Connected 0V
4
TEST
Connected 0V
5
X2
No connection
6
X1
Connected 5V
7
VSS
MCU ground line; connected to 0V
8
OSC1
10MHz crystal input
9
OSC2
10MHz crystal input
10
RES
MCU reset line; 0V = reset; 5V = normal operation
11
S0
CD Changer Mechanism door position switch
12
S1
CD Changer Mechanism door position switch
13
S2
CD Changer Mechanism door position switch
14
DN
CD Changer Mechanism door motor control line
15
UP
CD Changer Mechanism door motor control line
16
S0S1
CD DSP SUBQ ready input; high pulse for SUBQ ready
17
P60
No connection
18
P61
No connection
19
P62
No connection
20
P63
No connection
21
FOK
CD DSP focus OK; 5V = focus OK
22
LKFS
CD DSP tracking lock output; 5V = servo lock
23
P66
No connection
24
STAT
CD DSP internal status output
25
MCLK
CD DSP serial command clock
26
MLAT
CD DSP command latch
27
MDATA
CD DSP serial command data
28
XRST
CD DSP reset line; 0V = DSP reset
29
P54
No connection
30
P55
No connection
31
SQCK
SUBQ output serial clock
32
SUBQ
SUBQ output
33
VCC
MCU power supply; connected to 5V
34
P73
No connection
35
MUTE
System mute control; 5V = mute
36
P75
No connection
37
POWER
Servo power on/off control; 5V = power on
38
P77
No connection
39
DSNS
Disc detection optical sensor output; 0V = disc present
40
TRSW
Carousel position detection optical sensor output
41
RL+
Carousel motor line
42
RL-
Carousel motor line
43
HDCD
HDCD decoding status from PCM1732; 5V = HDCD
44
DAC.LAT
PCM1732 serial command latch
45
DAC.CLK
PCM1732 serial command clock
46
DAC.DATA PCM1732 serial command data
47
P20
No connection
48
P21
No connection
49
P22
No connection
50
VFD.DO
Display driver status serial data
51
VFD.DI
Display driver command serial data
52
VFD.CLK
Display driver command serial clock
53
VFD.LAT
Display driver command serial latch
54
P14
No connection
55
P15
No connection
56
TRCNT
CD DSP internal status for auto-adjustment
57
REMOTE
IR remote signal input
58
AVCC
Connected to 5V
59
PB7
No connection
60
PB6
No connection
61
PB5
No connection
62
PB4
No connection
63
PB3
No connection
64
PB2
No connection
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