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参数资料
| 型号： | TVP5041PFP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 颜色信号转换 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封装： | POWER, PLASTIC, TQFP-80 |
| 文件页数： | 6/106页 |
| 文件大小： | 501K |
| 代理商： | TVP5041PFP |
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4–3
4.1.5
Default Values
The Table 4–1 shows initial values of the registers after the microcode downloaded with an autoswitch mode setting.
The default mode is NTSC ITU-R BT.601.
Table 4–1. Default Values
ADDRESS
VALUE
NOTE
00
Video input source selection : Channel 1: V11A selected, Channel: V12A Selected
01
15
Automatic offset control enabled, AGC enabled using luma input as the reference
02
00
TV/VCR mode: automatic, Color subcarrier DTO frozen: DTO increments by the internally generated phase increments.
Power-down mode: Normal operation
03
01
GPCL is logic 0 output. PALI outputs PAL indicator signal and FID outputs field ID signal.
Y U/V high-impedance. HSYN, VSYN, AVID, PALI, and FID are high-impedance. Vertical blanking off SCLK and PCLK
outputs are high-impedance. (If the AVID pin is pulled down during reset and the PREF is pulled down during reset.)
09
GPCL is logic 0 output. PALI outputs PAL indicator signal and FID outputs field ID signal.
Y U/V high-impedance. SCLK and PCLK outputs are enabled. HSYN, VSYN, AVID, PALI, and FID are active. (If the AVID
pin is pulled up during reset.)
05
00
No software reset
06
10
Automatic color killer on, color killer threshold: –24 dB
07
00
Input video bypasses the chroma trap and comb filters. 7.5 IRE pedestal is present. Luma bypasses mode during vertical
blanking: No, Luma signal delay: 0 pixel clocks delay.
08
00
Luma comb filter enabled, peaking gain disabled.
09
80
Brightness: 128
0A
80
Color saturation: 128
0B
00
Hue control: 0 degrees
0C
80
Contrast control: 128
0D
40
ITU–R BT.601 sampling rate, ITU–R BT.601 coding range, offset binary code, YUV data path bypass: normal operation,
YUV output format: 20–bit 4:2:2 YUV
0E
00
Luminance filter select: 1.2129 MHz, NTSC CCIR601
16
80
HSYN start: 0 pixel clocks
18
00
Vertical blanking VBLK start: same time as start of vertical blanking interval
19
00
Vertical blanking VBLK stop: same time as end of vertical blanking interval
1A
2C
Adaptive between 3-line comb filter, Color DTO not reset, Automatic color gain control enabled.
1B
00
Chrominance output bandwidth: 1.2129 MHz
1C
00
All interrupt reset: no effect
1D
00
All interrupt source masked
1E
01
Interrupt B is active high
20
00
Decimation filter bypass disabled, Chroma: ADC1 selected, Luma/composite: ADC1 selected
25
00
Lock speed: Fast lock disabled
26
00
Crystal Frequency: 14.31818 MHz
28
00
Video standard: Autoswitch mode
9A
00
LPC error disabled, CCD parity error disabled, teletext parity error disabled, Hamming error disabled
9B
00
Filter 2 disabled, Filter 1 disabled, CCD odd field disabled, CCD even field disabled, teletext disabled
A0
00
No TTX search after VBI area, use default TTX sync. closed caption is disabled, NABTS
A1
00
No TTX search
A2
00
No TTX search
B4
05
Threshold value: 5
B5
38
Data required, interrupt line number: 24
B6
02
TTX PHI/I2C output enabled
C1
00
All interrupt disabled
C2
04
YUV pins are 3-state, interrupt terminal is not active, interrupt is active low
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