Pin No. Symbol
I/O Description
Pin No.
Symbol
I/O Description
1
VDD
Power supply terminal. Connect to 5V.
41
P22
O
Segment output terminal of P22.
2
VSS
Ground terminal.
42
P21
O
Segment output terminal of P21.
3
X1
Ceramic oscillator connection terminals for main system.
43
P20
O
Segment output terminal of P20.
4
X2
Connect the 5MHz ceramic oscillator between #3 and #4.
44
P19
O
Segment output terminal of P19.
5
IC/VPP
Internal connection terminal
45
P18
O
Segment output terminal of P18.
6
~RESET
I
System reset signal input terminal.
46
P17
O
Segment output terminal of P17.
7
SUBCL/SCK
I
Clock input terminal to transmit the signal from main microprocessor.
47
P16
O
Segment output terminal of P16.
8
SUBDO/SDI
I
Data input terminal to transmit the signal from main microprocessor.
48
P15
O
Segment output terminal of P15.
9
SUBDI/SDD
O
Data output terminal to transmit the signal to main microprocessor.
49
P14
O
Segment output terminal of P14.
10
SUBLDY
O
Data ready output terminal to transmit to the main microprocessor.
50
P13
O
Segment output terminal of P13.
11
VBJ
I
Pulse input terminal from the rotary encoder of volume.
51
P12
O
Segment output terminal of P12.
12
VAJ
I
Pulse input terminal from the rotary encoder of volume.
52
P11
O
Segment output terminal of P11.
13
SSCBJ
I
Not used.
53
P10
O
Segment output terminal of P10.
14
SSCAJ
I
Not used.
54
P9
O
Segment output terminal of P9.
15
~IRIN
I
Not used.
55
P8
O
Segment output terminal of P8.
16
~IRF
I
Signal input terminal from the remote controller.
56
P7
O
Segment output terminal of P7.
17
STBYLED
O
Standby LED control output terminal.
57
P6
O
Segment output terminal of P6.
18
AVSS
Ground terminal for A/D converter.
58
P5
O
Segment output terminal of P5.
19
K3
I
Operation key connection terminal.
59
VDD2
Power supply terminal. Apply +5V.
20
K2
I
Operation key connection terminal.
60
VLOAD
Negative power supply terminal of FL controller.
21
K1
I
Operation key connection terminal.
61
P4
O
Segment output terminal of P4.
Operation key connection terminal.
62
P3
O
Segment output terminal of P3.
Ground terminal
63
P2
O
Segment output terminal of P2.
Power supply terminal for A/D converter.
64
P1
O
Segment output terminal of P1.
Power supply terminal. Apply +5V.
65
16G
O
Grid output terminal of 16G.
System code input terminal.
66
15G
O
Grid output terminal of 15G.
System code output terminal.
67
14G
O
Grid output terminal of 14G.
Segment output terminal of P35.
68
13G
O
Grid output terminal of 13G.
Segment output terminal of P34.
69
12G
O
Grid output terminal of 12G.
Segment output terminal of P33.
70
11G
O
Grid output terminal of 11G.
Segment output terminal of P32.
71
10G
O
Grid output terminal of 10G.
Segment output terminal of P31.
72
9G
O
Grid output terminal of 9G.
33
P30
O
Segment output terminal of P30.
73
8G
O
Grid output terminal of 8G.
34
P29
O
Segment output terminal of P29.
74
7G
O
Grid output terminal of 7G.
35
P28
O
Segment output terminal of P28.
75
6G
O
Grid output terminal of 6G.
36
P27
O
Segment output terminal of P27.
76
5G
O
Grid output terminal of 5G.
37
P26
O
Segment output terminal of P26.
77
4G
O
Grid output terminal of 4G.
38
P25
O
Segment output terminal of P25.
78
3G
O
Grid output terminal of 3G.
39
P24
O
Segment output terminal of P24.
79
2G
O
Grid output terminal of 2G.
40
P23
O
Segment output terminal of P23.
80
1G
O
Grid output terminal of 1G.
HT-R500
TERMINAL DESCRIPTION
SUB MICROPROCESSOR
HT-R500
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
