參數(shù)資料
型號(hào)： UPD70741
廠商： NEC Corp.
元件分類： 16位微控制器
英文描述： V821TM 32-/16-BIT MICROPROCESSOR
中文描述： V821TM 32-/16-BIT微處理器
文件頁(yè)數(shù)： 35/112頁(yè)
文件大?。?/td> 605K
代理商： UPD70741
μ
PD70741
35
7. DMA FUNCTIONS (DMA CONTROLLER)
The V821 includes a DMA (Direct Memory Access) controller that executes and controls DMA transfer.
The DMAC (DMA controller) transfers data between memory and I/O, or within memory, based on DMA requests
issued by the built-in peripheral hardware (serial interfaces and timer), external DREQ pins, or software triggers.
7.1 Features
Two independent DMA channels
Transfer units: 8/16 bits
Maximum transfer count: 65 536 (2
16
)
Two types of transfer
Fly-by (one-cycle) transfer
Two-cycle transfer
Three transfer modes
Single transfer mode
Single-step transfer mode
Block transfer mode
Transfer requests
External DREQ pin (
×
2)
Requests from built-in peripheral hardware (serial interfaces and timer)
Requests from software
Transfer objects
Memory to I/O and vice versa
Memory to memory and vice versa
Programmable wait function
DMA transfer end output signal (TC)
相關(guān)PDF資料
PDF描述
UPD70741GC-25-8EU V821TM 32-/16-BIT MICROPROCESSOR
UPD70F3003A V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
UPD70F3003AGC-25-8EU Circular Connector; No. of Contacts:24; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-24 RoHS Compliant: No
UPD70F3025AGC-25-8EU V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
UPD70F3003AGC-33-8EU LJT 29C 29#16 PIN PLUG
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD70741GC-25-8EU 制造商:NEC 制造商全稱:NEC 功能描述:V821TM 32-/16-BIT MICROPROCESSOR
UPD70742GD-25-LML 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
UPD70F30025AGC-25 制造商:NEC 制造商全稱:NEC 功能描述:32-bit RISC Microcontrollers
UPD70F30025AGC-33 制造商:NEC 制造商全稱:NEC 功能描述:32-bit RISC Microcontrollers
UPD70F3003A 制造商:NEC 制造商全稱:NEC 功能描述:V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*