PID (Packet Identifier) TVSP (Transient Voltage Suppressors, Polarized) TCP (Transmission Control Protocol) OTG (On-The-Go) SCG (Short Circuit to Ground) HASL (Hot Air Solder Level) kPa (kilopascal) This can be because the data isn't ready yet (for instance, the slave hasn't completed an analog-to-digital conversion yet) or because a previous operation hasn't yet completed (say, an EEPROM which hasn't completed writing to non-volatile memory yet and needs to finish that before it can service other requests). HW (Hardware) MOT (Motor) Once the first 8 bits of the frame are sent, the receiving device is given control over SDA. LIN (Local Interconnect Network) RTC (Real Time Clock) SCL (System Control Layer) SCTE Society of Cable Telecommunications Engineers SD (Secure Digital) SD (Standard definition) SDR (Single Data Rate. DVB-T2 (Digital Video Broadcasting – Second Generation Terrestrial) AES Advanced Encryption Standard GND (Electrical Ground) QFP (Quad Flat Package) Nominally, all clocking is driven by the master device--slaves simply put data on the bus or take data off the bus in response to the master's clock pulses. TDES (Triple Data Encryption Standard) RESM (Resistor Molded) Wi-Fi (Wireless Internet Free Internet) SOJ (Small Outline IC J-Leaded) After the address frame has been sent, data can begin being transmitted. µC (micro Controller) PDP (Project Development Plan) SSOP (Shrink Small Outline Package) PKE ( Passive Keyless Entry) fDATA = ½ x fCLK) SDRAM (Synchronous Dynamic Random-Access Memory) SDT (Schematic Design Tools) SDTV (Standard Definition Television) SFS (Streaming File System) ECM (Entitlement Control Management) CAPRB (Capacitors Non Polarized Radial Disk Button Vertical) DVM Design Verification Method DVB-S2 (Digital Video Broadcasting – Satellite Second Generation) SPDT (Single Pole Double Transition) MMU (Memory Management Unit) Don't they both stand for serial clock? V (Volt) DO (Digital Output) Data is placed on the SDA line after SCL goes low, and is sampled after the SCL line goes high. KL30 (is battery positive contact, connected all the time in the vehicle) kb (kilobit) CBC (Cipher Block Chaining mode) DFMEA (Design FMEA see FMEA) 2D (2 dimensions) LOI (Letter Of Intent) The master is required to refrain from additional clock pulses or data transfer until such time as the slave releases the SCL line. h (hour) SparkFun Logic Level Converter - Bi-Directional, SparkFun Level Translator Breakout - PCA9306, cut the two traces connecting to the center jumper pad using an hobby knife, remove solder on the three jumper pads using a soldering iron, dedicated IC to extend the signal such as the PCA9615. BL (Boot Loader) MMP (MultiMedia Player) SMC (Stepper Motor Controller) Since the board also includes an enable line, it can be used to disable communications to selected devices. Connecting a single master to a single slave with an SPI bus requires four lines; each additional slave requires one additional chip select I/O pin on the master. E2LP (Embedded Engineering Learning Platform) SPI is commonly used to connect microcontrollers to peripherals such as sensors, shift registers, and SD cards. APFC (Active Power Factor Correction) PNC (Partial Network Cluster) HSDPA (High Speed Downlink Packet Access) DMAC (Direct Memory Access Controller) e (electron) Win (Windows) CQFP (Ceramic Quad Flat Packages) SIM (Subscriber Identification Module) TS (Transport Stream) Vin (Voltage input) TBC (To Be Confirmed) WB (Wideband) PTC (Production Test Concept) ReDTC (ReDesign To Cost) DVB-T (Digital Video Broadcasting – Terrestrial) HV (High Voltage) T (Temperature) ILO (Internal Low-speed Oscillator) F (Frequency) There are three additional modes specified: In addition to "vanilla" I2C, Intel introduced a variant in 1995 call "System Management Bus" (SMBus). eMMC (Embedded Multimedia Card) If you have many I2C devices on the same bus, you may need to adjust the equivalent value for the pull-up resistors by disconnecting the pull-up resistors on a few of the devices. HPM (High Power Mode) FCI (Framatome Connectors International) STB (Set Top Box) D (Diode) NMEA (National Marine Electronics Association) DRBFM (Design Review Based on Failure Mode) At least one start and stop bit is a part of each frame of data, meaning that 10 bits of transmission time are required for each 8 bits of data sent, which eats into the data rate. SWRS (Software Requirement Specification) f (Frequency) SCL is the clock line for an I2C bus while SCK is the clock line for SPI communication. TVS (Transient Voltage Suppressors) Each signal line has a pull-up resistor on it, to restore the signal to high when no device is asserting it low. The most obvious drawback of SPI is the number of pins required. GPT (General Purpose Timer) RC (Resistor -Capacitor Circuit(Resistor in Series and Capacitor in parallel at output)) CAPM (Capacitor Molded Non-polarized) HAL (Hardware Abstraction Layer) Like the Serial Peripheral Interface (SPI), it is only intended for short distance communications within a single device. The clock signal is always generated by the current bus master; some slave devices may force the clock low at times to delay the master sending more data (or to require more time to prepare data before the master attempts to clock it out). If the voltage difference between the two systems is too great (say, 5V and 2.5V), SparkFun offers a simple I2C level shifter board. VCC (Volvo Car Corporation) LSB (Least Significant Bit) WAN (Wide Area Networks) DFN (Dual Flat No-lead) SMBus is a more tightly controlled format, intended to maximize predictability of communications between support ICs on PC motherboards. AFC (Automatic Flow Controller) PM (Power management) M (Motor) KL50 (is position #3 (start) of ignition switch in the vehicle) SCTE Society of Cable Telecommunications Engineers There is some overhead with I2C; for every 8 bits of data to be sent, one extra bit of meta data (the "ACK/NACK" bit, which we'll discuss later) must be transmitted. BOM (Bill Of Materials) AIAG (Automotive Industry Action Group) This is useful in cases where more than one device with the same address is to be connected to a single master--Wii Nunchucks are a good example. WLPSP (Wafer Level Pico Scale Package) HS CAN (High Speed Controller Area Network) Get started with the CCS811, BME280, VCNL4040, and microOLED via I2C using the Qwiic system and Python on a Raspberry Pi! LC (Logical Component) MCWDT (Multi-Counter Watchdog Timer) PASE (Portable Application Solutions Environment) HSUPA (High Speed Uplink Packet Access) R (Resistor) MMC (MultiMediaCard) RESADV (Resistor Axial Diameter Vertical Mounting ) Voltage drop (Transient voltage drop) DIOMELF (Diode metal electrode leadless face melf) Data sampled only once within a clock cycle. DVP (Design Validation Plan) Press J to jump to the feed. NIM (Network Interface Module) TCP/IP (Transmission Control Protocol/Internet Protocol) RESCAF (Resistor Chip Array Flat) CAPRR Capacitors Non Polarized Radial Rectangular Vertical API (Application Programming Interface) AUTOSAR (Automotive Open System Architecture [http://www.autosar.org]) electronics, technology, electronics engineering. ESOW (Engineering Statement Of Work) MSD (Mass Storage Device) PDN (Power Distribution Network) CA (Criticality Analysis) Sometimes, it is important that a master device be allowed to exchange several messages in one go, without allowing other master devices on the bus to interfere. max (maximum) CFM (Cubic Feet per Minute) Contact in the vehicle) Q (Transistor) CONV (Converters) PMOS (P-channel Metal Oxide Semiconductor) SAE (Society for Automotive Engineers)
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