what is ivr pin

http://bbs.elecfans.com/forum.php?mod=viewthreadtid=207422highlight=What is the pull current, what is the sink current? What is the absorption current?Pull current and sink current is t

be dozens to hundreds of KB. (Note: This answer does not involve the TTL chip, nor does it consider the effects of Impedance Matching and electromagnetic interference when designing high-frequency PCB .)1. the pull-up or drop-down resistor indicated on the Chip Pin refers to a resistor or equivalent resistor designed inside the Chip Pin. the purpose of designing this resistor

There is no doubt that the Linux kernel needs to manage all the hardware devices connected to the computer. If you want to manage these devices, you need to communicate with them first, there are generally two scenarios for this functionality:1. Polling (polling) allows the kernel to periodically query the status of the device, and then make the corresponding processing;2. Interrupt (interrupt) allows the hardware to signal to the kernel when needed (

-write data. String 34, upgrade the meaning of the BIOSThere are usually several reasons to upgrade the BIOS:(1) Provide support for new hardware or technical specifications.Computer hardware technology development too fast, the motherboard for some new hardware (such as K6-III Celeron II CPU) or new technology (such as DMA100, DMA66, more than 35GB hard disk, etc.) did not correctly identify or provide support, You will need to upgrade the BIOS to gain support for new hardware or technology.(2)

The Linux kernel needs to manage all the hardware devices connected to the computer, which is undoubtedly part of it. To manage these devices, you must first communicate with them. Generally, there are two solutions to achieve this function:1. Polling allows the kernel to regularly query the device status and then process the status accordingly;2. Interrupt enables the hardware to send signals to the kernel as needed (switch the kernel to the hardware

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need to is a browser, but could very well is an application. The reasons for have such an application is several:it May is acting as an MCU, a media recorder, an IVR applicatio n, a Bridge towards a more or less different technology (e.g., SIP, RTMP, or any legacy streami

Source: http://www.elecfans.com/dianzichangshi/2009062872843.html What is a pull-up resistor and a drop-down resistor? What are their functions? The pull-up resistor is generally the resistor in the circuit where one end is connected to the power supply and the other end

chassis leakage. 　　Second, the chassis leakage is what reason? There are two cases of leakage of the chassis, one is the long-term rainy, humid air so that the chassis electrostatic voltage is too high, the hands of the feeling of electricity! This situation, as long as the attention to strengthen ventilat

better 4. P0 port for open-drain output, as an outlet need to add a pull resistor, the resistance is generally 10k. set to timer mode, the plus 1 counter is the internal machine cycle count (one machine cycle equals 12 oscillation cycles, i.e. the counting frequency is 1/12 of the crystal oscillator frequency). The Count value n times the machine cycle tcy

after the hair can be a. So hurry up and tundish. Serial hard disk is so people pay attention to. Below we share the next serial hard disk and the same port hard drive data cable difference, the following figure: Serial port and parallel port hard drive data cable contrast 　　"Serial hard disk" and "Mouth hard disk" differenceas technology matures, more and more motherboards and hard disks are starting to support SATA (Serial ATA), and

What should I do if the motherboard is shorted? Don't be afraid, the motherboard is not so fragile, the motherboard has a protective device, patience to read this article, and then go to check the motherboard it. Motherboard short circuit what to do What

new module and the old module have the same functions and interfaces, even if they use different algorithms and protocols. To transmit information and data correctly between computers and terminals in the network, there must be an agreement or rule on the order of data transmission, data format and content, such an agreement or rule is called an agreement. The network protocol consists of three parts: 1. Semantics:

If your phone supports facial unlocking, follow these steps to set it up: 1. On the standby screen, click "Application". 2. Slide screen click "Set". 3. Click on "My Device" and select "Lock Screen". 4. Click on "Screen lock". 5. Click "Face Unlock". 6. When the "warning" prompt appears on the screen, click "Next". 7. Display the "Prompt information" on the face unlock on the screen

; especially in high-frequency environments, it is more like the electrical characteristics of inductance. We all know that the actual capacitance model is simply built with capacitance, resistance, and inductance. In addition to the capacity C of the capacitor, it also includes the following parasitic parameters:1. equivalent series resistance (resr): The equivalent series resistance of the capacitor

/15438897.html Pulse Width Modulation (PWM) is a term used in switching regulated power supply. This is classified by the control mode of voltage regulation. In addition to the PWM type, there are also PFM type and PWM, PFM hybrid. The pulse width modulated (PWM) switching voltage regulator circuit adjusts the duty cycle through voltage feedback without changing the output frequency of the control circuit