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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: 70/174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.
70
Versi on 0. 4, March/2000
VASFF[2:9]
Bits 0-5
Bits 6-15
Graphics Stream Fetch Finish
This register specifies the number of DWORD DRAM access cycle for a horizontal scan line
fetching of graphics data stream
Reserved
VA Stream Fetch Finish
This register specifies the number of DWORD DRAM access cycle for a horizontal scan line
fetching of VA video data stream
Reserved
Bits 16-21
Bits 22-31
VA Scaling Control Register (VASC)
Port address : 0x0000013c
Read/Write
Power-on Default : 0x----
0
1
2
3
4
5
6
7
VUPS
Reserved
VA Vertical Scaling Factor[0:4]
8
9
10
11
12
13
14
15
VA Vertical Scaling Factor[5:12]
16
17
18
19
20
21
22
23
HUPS
Reserved
VA Horizontal Scaling Factor[0:4]
24
25
26
27
28
29
30
31
VA Horizontal Scaling Factor[5:12]
Bit 0
Bits 1-2
Bits 3-15
VA Vertical Up-scaling Method
0 = Replication
1 = Interpolation
Reserved
VA Vertical Scaling Factor
This 13-bit value specifies the vertical scaling factor of 0.5 (1/2 down-scaling), and 1.0 ~
7.999 (up-scaling). Bits 0-2 specify the integral part and bits 3-12 specify the decimal part of
the scaling factor. 1/2 downing-scaling will be done when this value < 1 (bits 0-2 = 000 and
bits 3-12 don
care). Scaling is disabled when this value = 1.000 (bits 0-2 = 001 and bits 3-
12 = 000H).
VA Horizontal Up-scaling Method
0 = Replication
Bit 16
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