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参数资料
| 型号： | CX24118A-12Z |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 消费家电 |
| 英文描述： | Advanced Modulation Digital Satellite Tuner |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC36 |
| 封装： | 6 X 6 MM, 0.85 MM HEIGHT, PLASTIC, SOT1092-1, HVQFN-36 |
| 文件页数： | 9/45页 |
| 文件大小： | 494K |
| 代理商： | CX24118A-12Z |
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17
XMEGA A1U [DATASHEET]
Atmel-8385H-AVR-ATxmega64A1U-128A1U-Datasheet–AVR–04/2014
8.
DMAC – Direct Memory Access Controller
8.1
Features
Allows high speed data transfers with minimal CPU intervention
from data memory to data memory
from data memory to peripheral
from peripheral to data memory
from peripheral to peripheral
Four DMA channels with separate
transfer triggers
interrupt vectors
addressing modes
Programmable channel priority
From 1 byte to 16MB of data in a single transaction
Up to 64KB block transfers with repeat
1, 2, 4, or 8 byte burst transfers
Multiple addressing modes
Static
Incremental
Decremental
Optional reload of source and destination addresses at the end of each
Burst
Block
Transaction
Optional interrupt on end of transaction
Optional connection to CRC generator for CRC on DMA data
8.2
Overview
The four-channel direct memory access (DMA) controller can transfer data between memories and peripherals, and thus
offload these tasks from the CPU. It enables high data transfer rates with minimum CPU intervention, and frees up CPU
time. The four DMA channels enable up to four independent and parallel transfers.
The DMA controller can move data between SRAM and peripherals, between SRAM locations and directly between
peripheral registers. With access to all peripherals, the DMA controller can handle automatic transfer of data to/from
communication modules. The DMA controller can also read from memory mapped EEPROM.
Data transfers are done in continuous bursts of 1, 2, 4, or 8 bytes. They build block transfers of configurable size from 1
byte to 64KB. A repeat counter can be used to repeat each block transfer for single transactions up to 16MB. Source and
destination addressing can be static, incremental or decremental. Automatic reload of source and/or destination
addresses can be done after each burst or block transfer, or when a transaction is complete. Application software,
peripherals, and events can trigger DMA transfers.
The four DMA channels have individual configuration and control settings. This include source, destination, transfer
triggers, and transaction sizes. They have individual interrupt settings. Interrupt requests can be generated when a
transaction is complete or when the DMA controller detects an error on a DMA channel.
To allow for continuous transfers, two channels can be interlinked so that the second takes over the transfer when the
first is finished, and vice versa.
相关PDF资料 |
PDF描述 |
|---|---|
| DAMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DBMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DCMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DDMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DEMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CX24118A-12Z,518 | 功能描述:调谐器 IC SATELLITE TUNER DGTL RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| CX24118A-12Z,557 | 功能描述:调谐器 IC SATELLITE TUNER DGTL RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| CX24123 | 制造商:CONEXANT 制造商全称:CONEXANT 功能描述:Demodulator and FEC Decoder Low-power QPSK demodulator for worldwide satellite set-top box applications |
| CX24123-11,518 | 功能描述:IC DEMODULATOR/DECODER 64-TQFP RoHS:是 类别:集成电路 (IC) >> 线性 - 视频处理 系列:- 产品变化通告:Product Discontinuation 07/Mar/2011 标准包装:3,000 系列:OMNITUNE™ 类型:调谐器 应用:移动电话，手机，视频显示器 安装类型:表面贴装 封装/外壳:65-WFBGA 供应商设备封装:PG-WFSGA-65 包装:带卷 (TR) 其它名称:SP000365064 |
| CX24123-11,557 | 功能描述:IC DEMODULATOR/DECODER 64-TQFP RoHS:是 类别:集成电路 (IC) >> 线性 - 视频处理 系列:- 产品变化通告:Product Discontinuation 07/Mar/2011 标准包装:3,000 系列:OMNITUNE™ 类型:调谐器 应用:移动电话，手机，视频显示器 安装类型:表面贴装 封装/外壳:65-WFBGA 供应商设备封装:PG-WFSGA-65 包装:带卷 (TR) 其它名称:SP000365064 |
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