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參數(shù)資料
| 型號(hào)： | AT85C51SND3B1-RTTUL |
| 廠商： | Atmel |
| 文件頁(yè)數(shù)： | 96/119頁(yè) |
| 文件大小： | 0K |
| 描述： | IC DECODER/ENCODER DGTL 100-LQFP |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 類型： | 音頻編碼器/解碼器 |
| 應(yīng)用： | 移動(dòng)電話，手機(jī)，視頻顯示器 |
| 電壓 - 電源，數(shù)字： | 1.65 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LQFP |
| 供應(yīng)商設(shè)備封裝： | 100-LQFP（14x14） |
| 包裝： | 托盤(pán) |
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78
AT85C51SND3B
7632D–MP3–01/07
Data Flow Controller
The Data Flow Controller (DFC) implemented in the AT85C51SND3B derivatives is the
multimedia data transfer manager. Up to two data transfers can be established through
two physical data channels between a source peripheral and a destination peripheral.
Figure 45 shows which peripherals are connected to the internal bus which are: the
CPU internal bus, the multimedia data bus and the DFC control bus.
Figure 45. DFC Internal Architecture
CPU Interface
The DFC interfaces to the C51 core through the following special function registers:
DFCON the DFC control register, DFCSTA the channel status register, DFCCON the
channel control register, DFD0 and DFD1, the physical channel 0 and channel 1 data
flow descriptor registers and DFCRC the CRC data register.
Clock Unit
T he D F C cl oc k i s gen er ate d bas ed on th e cl oc k ge ner at or a s det ail ed i n
Section “DFC/NFC Clock Generator”, page 31. Depending on the power mode (USB
powered or battery powered) and the throughput desired, different clock values may be
selected to control the data transfer. The DFC does not receive its system clock until
DFEN bit in DFCON is set, i.e. DFC enabled.
Data Flow Descriptor
As shown in Table 91 the data flow is characterized by a 5-byte data flow descriptor: the
DFD composed of 4 fields. The data flow descriptor is written byte by byte to DFD0
(channel 0) or to DFD1 (channel 1). As soon as a DFD has been fully written, the chan-
nel is enabled and data flow transfer starts when both source and destination are ready
to send and receive data respectively.
RAM
USB
AUP
SPI
SIO
NFC
MMC
CPU
Internal Bus
DFC
Control Bus
Multimedia
Data Bus
DFC
CLOCK
DFEN
DFCON.0
PSI
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| AT85C51SND3B2-RTTUL | 功能描述:音頻 DSP Microcontroller RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| AT85C51SND3BX | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:MP3 Microcontrollers |
| AT85C51SND4B1-7FTUL | 功能描述:音頻 DSP Microcontroller RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| AT85DVK-07 | 功能描述:開(kāi)發(fā)板和工具包 - 8051 DEV Kit SND3 RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評(píng)估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| AT85EC5122 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES |
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