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參數(shù)資料
| 型號： | MB91110PMT2 |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP144 |
| 封裝： | PLASTIC, LQFP-144 |
| 文件頁數(shù)： | 54/98頁 |
| 文件大?。?/td> | 1049K |
| 代理商： | MB91110PMT2 |
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MB91110 Series
58
16. DMA Controller (DMAC)
The DMA controller is the module to realize Direct Memory Access (DMA) transfers with FR 30 series devices.
DMA transfers controlled by this module enable quick and direct transfer of all data without using the CPU and
thus system performance is increased.
Hardware Configuration of DMA Controller
This module is mainly configured of the following items.
Internal I/O access control circuit
32-bit address counters (possible reload specification : 10)
16-bit transfer number counters (possible reload specification : 5)
External transfer request input pin : DREQ0, DREQ1, DREQ2
External transfer request reception output pin : DACK0, DACK1, DACK2 (external bus synchronization)
External transfer termination output pin : DEOP0, DEOP1, DEOP2 (external bus synchronization)
Major Function of DMA Controller
There are the following functions for data transfer using this module.
Independent data transfer of a number of channels is possible (5 ch)
Priority ranking amongst channels
Fixed ranking (ch.0
> ch.1 > ch.2 > ch.3 > ch.4)
Ranking between channel 0 and 1 can be reversed.
Transfer request
Dedicated external pin input (Edge detection / level detection selection are possible for channels 0 to 2 only.)
Built-in peripheral request (interruption requests are shared. External interruption is included.)
Software request (register writing)
Transfer sequence
Consecutive / burst transfer
Step transfer / block transfer (Maximum 16 words are settable.)
Addressing mode : 32-bit full address specification (increase / decrease / fix)
Data types : Byte, half word, word length
Single shot or reload can be selected.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB911110PMT2 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit RISC Microcontroller |
| MB91121 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit RISC Microcontroller |
| MB91121PFV | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-bit RISC Microcontroller CMOS |
| MB91133 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit RISC Microcontroller |
| MB91133PBT | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:32-Bit RISC Microcontroller |
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