參數資料
型號: TMC2376
廠商: Fairchild Semiconductor Corporation
英文描述: PC-to-TV Video Standards Converter(PC到TV視頻標準變換器)
中文描述: PC到電視視頻標準轉換器(電腦到電視視頻標準變換器)
文件頁數: 39/48頁
文件大小: 233K
代理商: TMC2376
TMC2376
PRODUCT SPECIFICATION
39
P
Table 11. Format Subcategories
Parameter Register Values
Parameter register values are listed for 640x400, 640x480,
800x600 and 1024x768 resolutions in Table 12, Table 13,
Table 14, Table 15, Table 16, Table 17, Table 18, and Table
19. Each table shows the IHO, IVO, IHAW, ILS, IHS, VSC,
OHO, OVO and HSC parameter register values for either
NTSC and PAL. If the values of VSC, OVO and HSC can be
changed by an external source such as a TV remote control
unit, then limits: VSCmax, OVOmax, OVOmin, HSCmax
and HSCmin should be incorporated into the firmware to
prevent the output video from becoming unstable. If zoom is
to be used, then the VSC value should be set to the value
VSCzoom and the value of IHAW halved. If the vertical
scaling is to be adjustable, then the value of ILS must track
the value of VSC.
Mode No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Base Format
NECPC400
DMT7285
VGA_m2
DMT6475
XGA6475
Mac13LC
VGA_m3
VG900602
VG900601
MAC_16
VS900603
DMT1085
XGA1076
XGA_m5
VG901101
IVC min.
420
442
447
495
506
506
506
620
620
650
660
799
799
799
799
IVC max.
441
446
450
505
530
530
530
650
650
660
670
809
809
809
809
IHC min.
-
-
-
-
400
420
-
392
-
-
-
218
243
278
-
IHC max.
-
-
-
-
477
533
-
487
-
-
-
270
303
340
-
640x400
640x480
800x600
1024x768
Table 12. NTSC Parameter Register Values, 640x400 Resolution
Pointer
NECPC400
56.416
24.823
DMT658A
DMT658B
DMT7285
VGA_m2
fV
fH
H
fS
IHC
IVC
IHO
IVO
IHAW
ILS
I_HS
VSC
OHO
OVO
HSC
VSCmax
OVOmax
OVOmin
HSCmin
HSCmax
VSCzoom
85
85
85
70
37.86
445
26.76
377
444
37.861
445
29.445
377
444
37.927
446
29.5
377
445
147
31.469
449
24.13
454
448
142
440
19.48
A,B
C,D
0,1
2,3
4,5
6,7
8,9
E,F
20,21
22,23
24,25
72
439
170
23
685
197
856
35
31
607
203
705
680
205
765
6
0
0
151
50
156
39
151
41
0
5
8
5
0
4
60
40
50
34
13
0
6
50
34
9
0
6
8
0
0
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