- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69037 > MR82C37A/B (INTERSIL CORP) 4 CHANNEL(S), 8 MHz, DMA CONTROLLER, CQCC44 PDF資料下載
參數(shù)資料
| 型號： | MR82C37A/B |
| 廠商： | INTERSIL CORP |
| 元件分類： | DMA控制器 |
| 英文描述： | 4 CHANNEL(S), 8 MHz, DMA CONTROLLER, CQCC44 |
| 封裝： | CERAMIC, LCC-44 |
| 文件頁數(shù)： | 5/24頁 |
| 文件大?。?/td> | 430K |
| 代理商： | MR82C37A/B |
13
FN2967.2
March 20, 2006
82C37A
received, addresses and control signals are generated by
the DMA controller to accomplish the DMA transfers. Data is
transferred directly from the I/O device to memory (or vice
versa) with IOR and MEMW (or MEMR and IOW) being
active. Note that data is not read into or driven out of the
DMA controller in I/O-to-memory or memory-to-I/O data
transfers.
FIGURE 6. APPLICATION FOR DMA SYSTEM
MEMR
MEMW
IOR
IOW
MEMCS
MEMR
MEMW
MEMORY
47k
VCC
ADDRESS BUS
DATA BUS
VCC
DATA BUS
80C88
WR
RD
M/IO
HRQ
HLDA
AX
ALE
AD0
AD7
MN/MX
CLK
82C84A
OR
82C85
HLDA
MEMCS
STB
82C82
OE
DECODER
ADDRESS BUS
STB
82C82
OE
A0-7
CS
CLK
EOP
HLDA
IOR
DACK
ADSTB
AEN
DB0-7
IOW
MEMR
MEMW
HRQ
DREQ0
82C37A
IOR
IOW
VCC
CS
DREQ
I/O
DEVICE
NOTE: The address lines need pull-up resistors.
相關PDF資料 |
PDF描述 |
|---|---|
| MR82C89/B | 8 MHz, BUS ARBITER AND CONT SIG GEN, CQCC20 |
| MS176-40JC | PALETTE-DAC DSPL CTLR, PQCC44 |
| MSC1210SS | 0 TIMER(S), REAL TIME CLOCK, PDIP30 |
| MSC1210GS-K | 0 TIMER(S), REAL TIME CLOCK, PDSO32 |
| MSC7110VF800 | FLUORESCENT DSPL CTRL, PBGA400 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MR82C52 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Serial Controller Interface |
| MR82C52/B | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Serial Controller Interface |
| MR82C52B | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Serial Controller Interface |
| MR82C54 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Programmable Interval Timer |
| MR82C54-10 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Programmable Interval Timer |
發(fā)布緊急采購，3分鐘左右您將得到回復。