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| 型号： | SAF-TC11IB-64D96EBC |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 96 MHz, RISC MICROCONTROLLER, PBGA388 |
| 封装： | PLASTIC, BGA-388 |
| 文件页数： | 63/110页 |
| 文件大小： | 1303K |
| 代理商： | SAF-TC11IB-64D96EBC |
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TC11IB
Data Sheet
52
V2.4, 2004-06
Peripheral Control Processor
The Peripheral Control Processor (PCP) performs tasks that would normally be
performed by the combination of a DMA controller and its supporting CPU interrupt
service routines in a traditional computer system. It could easily be considered as the
host processor’s first line of defense as an interrupt-handling engine. The PCP can off-
load the CPU from having to service time-critical interrupts. This provides many benefits,
including:
Avoiding large interrupt-driven task context-switching latencies in the host processor
Lessening the cost of interrupts in terms of processor register and memory overhead
Improving the responsiveness of interrupt service routines to data-capture and data-
transfer operations
Easing the implementation of multitasking operating systems.
The PCP has an architecture which efficiently supports DMA type transactions to and
from arbitrary devices and memory addresses within the TC11IB and also has
reasonable stand alone computational capabilities.
The PCP is made up of several modular blocks as follows:
PCP Processor Core
Code Memory (PCODE)
Parameter Memory (PRAM)
PCP Interrupt Control Unit (PICU)
PCP Service Request Nodes (PSRN)
System bus interface to the slow FPI Bus
The PCP is fully interrupt-driven, meaning it is only activated through service requests;
there is no main program running in the background as with a conventional processor.
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