cisco isr

The appearance of "one machine" brings the efficient and quick office way for the enterprise. In today's network era, the new form of "network integration machine" will bring us what kind of new office form? Cisco ISR 881 is a multi-service router (Cisco 881) can be called a "network integration machine", he integrated the router, firewall, IPS, IPSec VPN, VoIP a

in the content, then mainly as the Ioconnectinterrupt system function of the parameters, the device hardware interrupt associated with the ISR, the Kinterrupt instance is the device interrupt software form of the carrier.1.2 DMADMA device, the system is divided into master and slave, another very important ability is whether to support Scatter/gather.These capabilities are finally shown now in the members of the data structures defined by device_desc

content, then mainly as the parameters of the Ioconnectinterrupt system function, the device hardware interrupt associated with the ISR, the Kinterrupt instance is the device interrupt software form of the carrier.1.2 DMADMA device, in the system is divided into master and slave, another very important ability is whether to support Scatter/gather.These capabilities are ultimately reflected in the members of the data structures defined by device_descr

Interrupts are an important part of embedded systems, which leads to a lot of compiler developers providing an extension-letting standard C support break. The representative fact is that a new keyword __interrupt has been produced. The following code uses the __interrupt keyword to define an interrupt service subroutine (ISR), please comment on this code. __interrupt Double Compute_area (double radius){ Double area = PI * radius * RADIUS;printf ("ar

ISFP is a command package for service interruption. There are three scenarios for creating ISR:1. Eight commands in An ISFP package can satisfy ISR requirements.2. ISR can occupy multiple consecutive ISFP (provided that the following interruptions are not used)3. ISR is located outside of istIn the preceding figure, B

1. System interruption and clock cycle 1.1 system interruption Interrupt is a hardware mechanism that notifies the cpu Of an asynchronous event. Once the interrupt is identified by the system, the CPU stores partial (or all) context values, that is, the values of some (or all) registers, and jumps to a special subroutine, it is called the interrupt service subroutine (ISR ). Interrupt Service subprograms are used to process events. After processing is

Interrupt service routines (ISR) ISR: interrupt service routine) The so-called interruption refers to an external event (such as a level change, the occurrence of a pulse edge, or the overflow of the timer count) when the CPU is processing something) the request is processed by the CPU quickly, so the CPU temporarily suspends the current job and forwards it to the processing of the event. After the inci

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Half a year five acquisitions Cisco intensive integration for self-redemptionWu MicroCisco, a "takeover guru", recently announced a new deal.The acquisition was Cloudlock, a cloud security company, with a total transaction price of $293 million. This is the fifth takeover deal that Cisco has launched this year.As the world's largest network equipment manufacturer, Cisco