參數(shù)資料
型號(hào)： R8820LV
廠商： Electronic Theatre Controls, Inc.
英文描述： 16-BIT RISC MICROCONTROLLER
中文描述： 16位RISC微控制器
文件頁數(shù)： 58/98頁
文件大?。?/td> 1000K
代理商： R8820LV
R DC
RISC DSP Controller
R8820LV
RDC Semiconductor Co.
Rev:1.0
Subject to change without notice
58
1 , 0 -- Destination synchronized
1 , 1 -- Reserved
Bit 5: P
, Priority.
Set 1: It selects high priority for this channel when both DMA 0 and DMA 1 are transfer in same time.
Bit 4: TDRQ
, Timer Enable/Disable Request
Set 1: Enable the DMA requests from timer 2.
Set 0: Disable the DMA requests from timer 2.
Bit 3:
Reserved
Bit 2: CHG
, Changed Start Bit. This bit must set to 1 when will modify the ST bit.
Bit 1: ST
, Start/Stop DMA channel.
Set 1: Start the DMA channel
Set 0: Stop the DMA channel
Bit 0 :
B
/W
, Byte/Word Select.
Set 1: The address is incremented or decremented by 2 after each transfer.
Set 0 :The address is incremented or decremented by 1 after each transfer.
Bit 15-0
: TC15-TC0, DMA 1 transfer Count. The value of this register is decremented by 1 after each transfer.
Bit 15-4
: Reserved
Bit 3-0: DDA19-DDA16
, High DMA 1 Destination Address. These bits are map to A19- A16 during a DMA transfer when
the destination address is in memory space or I/O space. If the destination address is in I/O space (64Kbytes), these
bits must be programmed to 0000b.
DMA Transfer Count Register
Offset : D8h (DMA1)
Reset Value :
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
TC15 - TC0
DMA Destination Address High Register
Offset : D6h (DMA1)
Reset Value :
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
Reserved
DDA19 - DDA16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R8821 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER
R8822 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RDC 16 Bit RISC MICRO-CONTROLLER
R8822I 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER
R8830 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER
R8830I 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER
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