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): 56/98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
56
Bit 3-0: DDA19-DDA16
, High DMA 0 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.
Bit 15-0: DDA15-DDA0
, Low DMA 0 Destination Address. These bits are mapped to A15- A0 during a DMA transfer.
The value of (DDA19-DDA0)b will increment or decrement by 2 after each DMA transfer.
Bit 15-4
: Reserved
Bit 3-0: DSA19-DSA16
, High DMA 0 Source Address. These bits are mapped to A19- A16 during a DMA transfer when the
source address is in memory space or I/O space. If the source address is in I/O space (64Kbytes), these bits must be
programmed to 0000b.
Bit 15-0: DSA15-DSA0
, Low DMA 0 Source Address. These bits are mapped to A15- A0 during a DMA transfer.
The value of (DSA19-DSA0)b will increment or decrement by 2 after each DMA transfer.
DMA Destination Address Low Register
Offset : C4h (DMA0)
Reset Value :
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
DDA15 - DDA0
DMA Source Address High Register
Offset : C2h (DMA0)
Reset Value :
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
DSA19 - DSA16
DMA Source Address Low Register
Offset : C0h (DMA0)
Reset Value :
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
DSA15 - DSA0
DMA Control Registers
Offset : DAh (DMA1)
Reset Value : FFF9h
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
TC
SINC
SDEC
DINC
DDEC
ST
CHG
Res
TDRQ
P
SYN0
SYN1
INT
B/W
SM/IO
DM/IO
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