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參數(shù)資料
| 型號： | VPC3200A |
| 廠商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 元件分類： | 消費家電 |
| 英文描述： | Comb Filter Video Processor |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | PLASTIC, QFP-80 |
| 文件頁數(shù)： | 29/78頁 |
| 文件大小： | 1245K |
| 代理商： | VPC3200A |
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ADVANCE INFORMATION
VPC 323xD, VPC 324xD
Micronas
29
2.12.9. External Field Memory
The requirements of the external field memory are:
– FIFO type access with reset
– write mask function: The increasing of the write
address pointer and the over writing of the data
should be controlled separately.
– output disable function: tri-statetable outputs
For PIP applications, VPC 32xxD supports 4:1:1 or
4:2:2 chrominance format. Table 2–13 shows the typi-
cal memory size for a 13.5 and 16 MHz system clock
application.
The following 5 signals are generated by VPC 32xxD
to control the external field memory:
RSTWR
(reset write/read) resets the internal write/
read address pointer to zero.
WE
(write enable) is used to enable or disable incre-
menting of the internal write address pointer.
IE
(input enable) is used to enable writing data from
the field memory input pins into the memory core, or to
disable writing and thereby preserving the previous
content of the memory (write mask function).
RE
(read enable) is used to enable or disable incre-
menting the internal read address pointer.
OE
(output enable) is used to enable or disable data
output to the output pins.
As serial write and serial read clock (
SWCK
and
SRCK
, respectively) of the field memory the line
locked clocks LLC1 and/or LLC2 are used.
Table 2–12:
Settings for Free-Running Mode
Control bit
Function
VPC
single
VPC
pip
VPC
main
write
PIP
write main
pic.
predef.
mode 6, 10
all other
modes
bit[11] of LLC_CLKC
(FP h’6a)
enable/disable
LLC PLL
1
0
0
1
0
bit[15] of AVO START
(I
2
C h’28)
enable/disable free-
running sync mode
1
0
0
1
0
Table 2–13:
Word length and minimum size of the field
memory
Chromi-
nance
format
Word
length
Memory size
[bit]
[word]
[bit]
4:1:1
12
245376
2944512
4:2:2
16
245376
3926016
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| VPC3200APSGP | 制造商:MICRONAS 功能描述:New |
| VPC3201A | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Comb Filter Video Processor |
| VPC3205C | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Comb Filter Video Processor |
| VPC3210A | 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Comb Filter Video Processor |
| VPC3210B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
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