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参数资料
| 型号： | PowerNP NPe405L |
| 厂商： | IBM Microeletronics |
| 英文描述： | 32-Bit Embedded Processor(32位嵌入式处理器) |
| 中文描述： | 32位嵌入式处理器（32位嵌入式处理器） |
| 文件页数： | 9/48页 |
| 文件大小： | 741K |
| 代理商： | POWERNP NPE405L |
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Advance Information
PowerNP
TM
NPe405L Embedded Processor Data Sheet
9
Programmable 2K clock time-out counter with disable for Ready
Programmable access timing per device
- 256 Wait States for non-burst
- 32 Burst Wait States for first access and up to 8 Wait States for subsequent accesses
- Programmable CSon, CSoff relative to address
- Programmable OEon, WEon, WEoff (1 to 4 clock cycles) relative to CS
Programmable address mapping
Peripheral Device pacing with external “Ready”
DMA Controller
Supports the following transfers:
- Memory-to-memory transfers
- Buffered peripheral to memory transfers
- Buffered memory to peripheral transfers
Four channels
Scatter/Gather capability for programming multiple DMA operations
8-, 16-, 32-bit peripheral support (OPB and external)
32-bit addressing
Address increment or decrement
Internal 32-byte data buffering capability
Supports internal and external peripherals
Support for memory mapped peripherals
Support for peripherals running on slower frequency buses
UART
Two 8-pin UART interfaces provided
Selectable internal or external serial clock to allow wide range of baud rates
Register compatibility with NS16550 register set
Complete status reporting capability
Transmitter and receiver are each buffered with 16-byte FIFOs when in FIFO mode
Fully programmable serial-interface characteristics
Supports DMA using internal DMA engine
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