參數(shù)資料
型號: UPD61052GD-LML
廠商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
中文描述: 馬鞍山集成電路MPEG2音頻/視頻編碼器
文件頁數(shù): 33/106頁
文件大?。?/td> 824K
代理商: UPD61052GD-LML
Data Sheet S15082EJ4V0DS
33
μ
PD61051, 61052
Figure 2-13. Serial Interface
A5 A4 A3 A2 A1 A0
W x
D5 D4 D3 D2 D1 D0
D7 D6
xx
x
A5 A4 A3 A2 A1 A0
R
x
x
x
x
x
x
x
x
x
xx
x
xx
D5 D4 D3 D2 D1 D0
D7 D6
[Data Write]
[Data Read]
CCS
CSCLK
CSDI
CSDO
CCS
CSCLK
CSDI
CSDO
xx
2.6
SDRAM Interface
External memory is SDRAM. It is possible to use the following.
Table 2-6. Use Memory
Memory
Data bus width
Quantity
Use memory capacity
16 Mbit SDRAM
16 bits
2
32 Mbits
64 Mbit SDRAM
32 bits
1
64 Mbits
64 Mbit SDRAM
16 bits
2
128 Mbits
128 Mbit SDRAM
16 bits
2
128 Mbits
128 Mbit SDRAM
32 bits
1
128 Mbits
The
μ
PD61051/61052 preserves the part of the parameter that is necessary to generate the stream, entry video
image, a video stream, an audio stream, a stream header, user data, and the instruction of the firmware at this
memory.
This system uses only CAS latency = 3, burst length = 4.
When encode using time base corrector and/or displays local decoding picture, it needs equal to or more than 64
Mbits SDRAM.
When PAL encoding, it needs equal to or more than 64 Mbit SDRAM.
When transcoding, it needs equal to or more than 64 Mbit SDRAM.
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