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Serial Communications
The display supports the following commands and queries using a protocol compatible with the
Pixelworks PWHost protocol. Baud rate set at 19,200.
PY5500 RS232 Command Table:
Variable
Description
Turn on backlight and
Power
AMLCD (assuming video
On
is present)
Power
Turn off backlight and
Off
AMLCD
Display changes to the
desired image
Set
scale setting:
Image
One to One, Fill All, Fill to
Scale
aspect Ratio
Fill to 16:9 Linear
Set
Adjusts the contrast of the
Contrast
display
Command
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op
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5125
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5125
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17430
pwc
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17430
pwc
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17430
pwc
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17430
pwc
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16388
pwc
op
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16388
pwc
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pwc
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pwc
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pwc
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pwc
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pwc
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pwc
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pwc
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pwc
op
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pwc
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pwc
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pwc
op
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pwc
op
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16388
pwc
op
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16388
pwc
op
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16388
pwc
op
1
16388
pwc
op
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16388
pwc
op
1
16388
pwc
op
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16388
pwc
op
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16388
pwc
op
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16388
pwc
op
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16388
pwc
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16388
pwc
op
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16388
pwc
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16388
pwc
op
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16388
pwc
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pwc
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16388
pwc
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pwc
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16388
pwc
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pwc
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pwc
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16388
PY5500 User Manual (020-1103-00 Rev. A)
Receive
0
0
all
0
-
0
4
all
4
-
0
0
all
0
Native
0
1
all
1
16:9
0
2
all
2
4:3
0
3
all
3
Letter box
0
64
all
64
0
0
65
all
65
0
0
66
all
66
1
0
67
all
67
2
0
68
all
68
3
0
69
all
69
3
0
70
all
70
4
0
71
all
71
5
0
72
all
72
6
0
73
all
73
7
0
74
all
74
7
0
75
all
75
8
0
76
all
76
9
0
77
all
77
10
0
78
all
78
10
0
79
all
79
11
0
80
all
80
12
0
81
all
81
13
0
82
all
82
14
0
83
all
83
14
0
84
all
84
15
0
85
all
85
16
0
86
all
86
17
0
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all
87
17
0
88
all
88
18
0
89
all
89
19
0
90
all
90
20
0
91
all
91
21
0
92
all
92
21
0
93
all
93
22
0
94
all
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23
0
95
all
95
24
0
96
all
96
25
0
97
all
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25
0
98
all
98
26
0
99
all
99
27
0
100
all
100
28
0
101
all
101
28
0
102
all
102
29
0
103
all
103
30
OSD Value
Display state
Get Value
On
0
Off
4
Native
0
16:9
-
4:3
-
Letter box
-
0
64
0
65
1
66
2
67
3
68
3
69
4
70
5
71
6
72
7
73
7
74
8
75
9
76
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10
78
11
79
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80
13
81
14
82
14
83
15
84
16
85
17
86
17
87
18
88
19
89
20
90
21
91
21
92
22
93
23
94
24
95
25
96
25
97
26
98
27
99
28
100
28
101
29
102
30
103
20
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