This is the quality management of cell phone jammer

 This is the quality management of cell phone jammer .
Every data transfer in the 12C bus controller. In the absence of data transfer, SDA SCL are pulled high, when the need for data transmission, the master first of all to produce a start signal (SCL is high, SDA is pulled low by the master device falling edge), and then passed in each SCL clock pulse occurs one bit of data, until the master to generate a stop signal (both SCL is high, the SDA for the rising edge of the master release) date. 12C bus master first sends controller 7 address and read / write a byte, the master must wait to be controller acknowledge bit after each byte.
Image description for the following three processes: CPU addressing mode, the CPU needs to control the slave CPU to the bus U412's address command from the device after receiving the command, then issue a response information, the CPU receives the response message after this from the device as its own control object. CPU data call process to find the CPU from the device after call from the memory control information and user information, and sent to the CPU through the 12C bus control pins, in order to control the working status from the device. Controller implementation of the directive, when the instruction received from the device, then the instruction "decipher" and "cracked" with its own storage content encoding. It shows the specification of cell phone jammer .
To determine what action, this work is done by the decoder in the bus interface. After determining what kind of operation, the bus interface control switch will be automatically connected, the control data through the switch to the D / A converter to convert analog signals and complete the action. The busiest time of the 12C bus data transfer is just getting the machine of the moment, the CPU from the memory, remove the control information and user information, and time-sharing sent to each controller by a controller to enter the work state, so just getting machine the moment, the CPU of the control task hopane To control the complexity of the possibility of damage to hardware and software naturally, so the phone should use the 12C bus to avoid frequency bother to open / shut down. The quality control of cell phone jammer can be applied to the 4M1E.
Some phones due to external contamination and leakage resulting in the 12C bus can not be normal transmission, caused by mobile phone is not working properly. In the SCM system, the CPU is not only to achieve control of their own, but also responsible for the control of the other features of the microcontroller system and beyond, and to complete the required operations and operators. The CPU to achieve these control functions, through the gradual implementation of the process of the instruction sequence to be completed.