參數(shù)資料
型號: 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): 55/98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
55
The definition of Bits 15-0 for DMA0 are same as the Bits 15-0 of register DAh for DMA1.
Bit 15-0
: TC15-TC0, DMA 0 transfer Count. The value of this register is decremented by 1 after each transfer.
Bit 15-4
: Reserved
CLKOUTA
ALE
A19-A0
AD15-AD0
RD
WR
T1
T2
T3
T4
T1
T2
T3
T4
Address
Address
Address
Data
Address
Data
Typical DMA Trarsfer
DMA Transfer Count Register
Offset : C8h (DMA0)
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 : C6h (DMA0)
Reset Value :
2
3
0
1
4
5
6
7
8
9
10
11
12
13
14
15
Reserved
DDA19 - DDA16
DMA Control Registers
Offset : CAh (DMA0)
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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