F65510

Manufacturer Part NumberF65510
DescriptionControllers, Flat Panel VGA Controller
ManufacturerIntel Corporation
F65510 datasheet
 


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
Page 91
92
Page 92
93
Page 93
94
Page 94
95
Page 95
96
Page 96
97
Page 97
98
Page 98
99
Page 99
100
Page 100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
Page 99/154

Download datasheet (2Mb)Embed
PrevNext
®
FP HORIZONTAL COMPENSATION
REGISTER (XR55)
Read/Write at I/O Address 3B7h/3D7h
Index 55h
D7 D6 D5 D4 D3 D2 D1 D0
Ena H Compensation
Ena H Auto Centering
Reserved
Reserved
Ena Auto H Doubling
Reformatter Control
Reserved
This register is used only when flat panel compen-
sation is enabled (XR51 bit-6 = 1).
0
Enable Horizontal Compensation
(EHCP)
0 Disable horizontal compensation
1 Enable horizontal compensation
1
Enable Automatic Horizontal Centering
(EAHC) (effective only if bit-0 is 1)
0 Enable non-automatic horizontal cen-
tering.
The Horizontal Centering
Register is used to specify the left
border. If no centering is desired then
the Horizontal Centering Register can
be programmed to 0.
1 Enable
automatic
centering. Horizontal left and right
borders will be computed automati-
cally.
2
Reserved (Must be programmed to 1)
When operating in 9-dot text modes,
horizontal compensation must always be
enabled (XR51 bit-6=1, XR55 bit-0=1).
3
Reserved
4
Reserved
5
Enable Automatic Horizontal Doubling
(EAHD) (this bit is effective if bit-0 is 1)
0 Disable Automatic Horizontal Dou-
bling. Horizontal doubling will only
be performed for flat panels when
SR01 bit-3 = 1 in any emulation
mode or when 3B8/3D8 bit-0 &
3B8/3D8 bit-4 = 0 in CGA emulation.
1 Enable Automatic Horizontal Dou-
bling. Horizontal doubling will be
performed for flat panels when SR01
bit-3 = 1 in any emulation mode or
Revision 0.7
6
Text Reformatter Control
This bit is typically set to 0. It is used for
test purposes only.
7
Reserved
horizontal
95
Extension Registers
when 3B8/3D8 bit-0 & 3B8/3D8 bit-
4 = 0 in CGA emulation or when the
Horizontal Display width (CR01) is
equal to or less than half of the
Horizontal Panel Size (XR18).
Preliminary 65510