參數(shù)資料
型號: ADV212-HD-EB
廠商: Analog Devices Inc
文件頁數(shù): 2/44頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR ADV212-HD
標準包裝: 1
主要目的: 視頻,視頻處理
嵌入式: 是,F(xiàn)PGA / CPLD
已用 IC / 零件: ADV212-HD
主要屬性: 與 1080i 和 720p SDI 兼容,32/64 位,33/66 MHz PCI 卡
次要屬性: GUI,JPEG2000 視頻編解碼器
已供物品:
相關產(chǎn)品: ADV212BBCZRL-150DKR-ND - IC CODEC VID JPEG 2000 144CSPBGA
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ADV212BBCZRL-150CT-ND - IC CODEC VID JPEG 2000 144CSPBGA
ADV212BBCZRL-115CT-ND - IC CODEC VID JPEG 2000 121CSPBGA
ADV212BBCZRL-150TR-ND - IC CODEC VID JPEG 2000 144CSPBGA
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ADV212BBCZ-150-ND - IC CODEC VID JPEG 2000 144CSPBGA
ADV212BBCZ-115-ND - IC CODEC VID JPEG 2000 121CSPBGA
ADV212
Rev. B | Page 10 of 44
DREQ/DACK DMA MODE—SINGLE FIFO READ OPERATION
Table 7.
Parameter
Mnemonic
Min
Typ
Max
Unit
DREQ Pulse Width
DREQPULSE
1 JCLK 1
15 JCLK1
ns
DACK Assert to Subsequent DREQ Delay
t
DREQ
2.5 JCLK1
3.5 × JCLK + 9.01
ns
RD to DACK Setup
t
RDSU
0
ns
DACK to Data Valid
t
RD
2.5
11
ns
Data Hold
tHD
1.5
ns
DACK Assert Pulse Width
DACKLOW
2 JCLK1
ns
DACK Deassert Pulse Width
DACKHIGH
2 JCLK1
ns
RD Hold after DACK Deassert
t
RDHD
0
ns
RD Assert to FSRQ Deassert (FIFO Empty)
RDFSRQ
1.5 JCLK1
2.5 × JCLK + 9.01
ns
DACK to DREQ Deassert (DR × PULS = 0)
t
DREQRTN
2.5 JCLK1
3.5 × JCLK + 9.01
ns
1
For a definition of JCLK, see Figure 32.
RD
DACK
DREQ
HDATA
0
1
2
tRD
tHD
DREQPULSE
tDREQ
tRD
SU
tRD
HD
DACKHIGH
DACKLOW
06389-
018
Figure 9. Single Read for DREQ/DACK DMA Mode for Assigned DMA Channel
(EDMOD0/EDMOD1[14:11] Not Programmed to a Value of 0000)
RD
DACK
DREQ
HDATA
0
1
2
tRD
tHD
tDREQ
RTN
tRD
SU
tRD
HD
DACKHIGH
DACKLOW
06389-
019
Figure 10. Single Read for DREQ/DACK DMA Mode for Assigned DMA Channel
(EDMOD0/EDMOD1[14:11] Programmed to a Value of 0000)
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