參數(shù)資料
型號: CD1284
廠商: Intel Corp.
英文描述: IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports
中文描述: 符合IEEE 1284兼容并行接口控制器兩個高速異步串行端口
文件頁數(shù): 8/176頁
文件大?。?/td> 2255K
代理商: CD1284
CD1284
IEEE 1284-Compatible Parallel Interface Controller
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Datasheet
Figures
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Functional Block Diagram ...................................................................................11
CD1284 Sample System Block Diagram ............................................................14
CD1284 Functional Block Diagram.....................................................................32
Internal Address Generation ...............................................................................32
Control Signal Generation...................................................................................38
CD1284 Daisy-Chain Connections .....................................................................42
Interrupt Generation Logic ..................................................................................45
FIFO Timer Processing.......................................................................................53
CD1284 Receive Character Processing .............................................................64
CD1284 Transmit Character Processing ............................................................70
FIFO Data Path Functional Diagram
Receive ................................................78
FIFO Data Path Functional Diagram
Transmit ...............................................80
Cable Connection................................................................................................85
External Buffer Control........................................................................................86
Intel
80x86 Family Interface ...............................................................................87
Motorola
68020 Interface ...................................................................................88
National Semiconductor
32000 Interface ...........................................................89
Flow Diagram of CD1284 Master Initialization Sequence...................................92
Polling Flow Chart.............................................................................................100
Reset Timing.....................................................................................................158
Clock Timing .....................................................................................................159
Asynchronous Read Cycle Timing....................................................................159
Asynchronous Write Cycle Timing ....................................................................160
Asynchronous Service Acknowledge Cycle Timing ..........................................161
Asynchronous DMA Read Cycle Timing...........................................................162
Asynchronous DMA Read Cycle Timing (Two Back-to-Back DMA Reads)......162
Asynchronous DMA Write Cycle Timing ...........................................................163
Asynchronous DMA Write Cycle Timing (Two Back-to-Back DMA Writes).......163
Synchronous Read Cycle Timing......................................................................165
Synchronous Write Cycle Timing......................................................................166
Synchronous Service Acknowledge Cycle Timing............................................167
Synchronous DMA Write Cycle Timing
(Two Back-to-Back 3-Cycle DMA Writes) .........................................................168
Synchronous DMA Read Cycle Timing
(Two Back-to-Back 3-Cycle DMA Reads).........................................................168
UART to RS232 and IR Port Interface Motherboard Example Schematic........172
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