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參數資料
型號: W90221F
廠商: WINBOND ELECTRONICS CORP
英文描述: PA-RISC Embedded Micro-Controller(惠普PA-RISC結構的32位嵌入式微控制器)
中文描述: PA - RISC的嵌入式微控制器(惠普的PA - RISC結構的32位嵌入式微控制器)
文件頁數: 74/174頁
文件大小: 2102K
代理商: W90221F
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The above information is the exclusive intellectual property of Winbond Electronics and shall not be disclosed, distributed or reproduced without permission from Winbond.
74
Versi on 0. 4, March/2000
When frame Buffer FIFO is fetched to this threshold by graphics controller, a request is
generated tp the DRAM controller for DRAM access. Initial value is 0CH.
VA Stream Brightness/Contrast/HUE/Saturation Adjustment Register (VAYCADJ)
Port address : 0x00000150
Read/Write
Power-on Default : 0x----
0
1
2
3
4
5
6
7
Reserved
Contrast[0:3]
8
9
10
11
12
13
14
15
Brightness
16
17
18
19
20
21
22
23
Saturation
Reserved
HUE[0:2]
24
25
26
27
28
29
30
31
HUE[3:10]
Bits 0-3
Bits 4-7
VA Contrast Value
A 4-bit contrast adjustment value allows adjustments in contrast from 1/8 to 15/8, in
increments of 1/8. Bit 4 specifies the integral part and bits 5-7 specify the decimal part of
this value. Contrast adjustment is implemented by multiplying the Y data by this constant.
VA Brightness Value
An 8-bit 2
complement value allows adjustments in brightness from -128 to +127, in
increments of 1. Brightness adjustment is implemented by adding or subtracting this
constant from the Y data.
VA Saturation Value
A 4-bit saturation adjustment value allows adjustments in saturation from 1/8 to 15/8, in
increments of 1/8. Bit 16 specifies the integral part and bits 17-19 specify the decimal part
of this value. Saturation adjustment is implemented by multiplying both Cb and Cr by this
constant.
Reserved
VA HUE Value
An 11-bit hue adjustment value allows adjustments in hue from 0 degree to 360 degree, in
increments of 0.176 degree. Hue adjustment is implemented by
Cb1 = Cb cosA + Cr sinA
Cr1 = Cr cosA - Cb sinA
Reserved
Bits 8-15
Bits 16-19
Bit 20
Bit 21-31
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