W90221X Winbond Electronics Corp America, W90221X Datasheet - Page 96

• Manufacturer Part Number: W90221X
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

TV Encoder Test Width/Height Register (TVTWH)
Port address: 0x00000178
Bits 0-3
Bits 4-7
Bit 8
Bits 9-11
Bits 12-13
Bits 14-15
Bits 16-23
Bits 24-31
W90221X version 0.6
VREFSEL
16
24
0
8
17
25
1
9
Reserved
Digital output selection for test
Bit 7 - enable bit; bit 6 - select TV luminance Y; bit 5 - select TV
composite CP; bit 4 - select TV chrominance C
DAC reference voltage select
DAC enable
Analog video output mode
0x - RGB out, TV-encoder is off; 10 - composite video; 11 - S-video +
composite video
TV system
00 - PAL-B, D, G, H, N; 01 - PAL_M; 10 – NTSC; 11 – Reserved
TV encoder horizontal test width
This 8-bit value specifies the total horizontal TV scan lines when the
TV encoder horizontal test is enabled (VPTC[29] = 1). This register is
not used during normal operation.
TV encoder vertical test height
This 8-bit value specifies the total vertical TV scab lines when the TV
encoder vertical test is enabled (VPTC[28] = 1). This register is not
used during normal operation.
CPOFF
10
18
26
2
TV Encoder Horizontal Test Width
TV Encoder Vertical Test Height
Access type: read/write
11
19
27
3
Analog Video Output
TEST_C
12
20
28
4
TEST_CP
13
21
29
5
TEST_Y TESTDAC
14
22
30
6
TV System
Default: 0x---
15
23
31
7
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