Manual De UsuarioTabla de contenidosFeatures1Overview1Logic Block Diagram1Pinouts2Device Operation3SRAM Write3SRAM Read3STORE Operation3AutoStore Operation3Software Store Operation4Hardware Store and HSB pin Operation4RECALL Operation4Hardware Recall (Power Up)4Software Recall4Disabling and Enabling AutoStore4Serial Peripheral Interface4SPI Overview4SPI Master5SPI Slave5Chip Select (CS)5Serial Clock (SCK)5Data Transmission SI/SO5Most Significant Bit (MSB)5Serial Opcode5Invalid Opcode5Status Register5SPI Modes6SPI Operating Features7Power Up7Power On Reset7Power Down7Active Power and Standby Power Modes7SPI Functional Description7Status Register8Read Status Register (RDSR) Instruction8Write Status Register (WRSR) Instruction8Write Protection and Block Protection9Write Enable (WREN) Instruction9Write Disable (WRDI) Instruction9Block Protection9Hardware Write Protection (WP Pin)9Memory Access10Read Sequence (READ)10Write Sequence (WRITE)10READ RTC (RDRTC) Instruction11WRITE RTC (WRTC) Instruction12Software Store (STORE)12Software Recall (RECALL)13AutoStore Disable (ASDISB)13AutoStore Enable (ASENB)13HOLD Pin Operation13Real Time Clock Operation14nvTIME Operation14Clock Operations14Reading the Clock14Setting the Clock14Backup Power14Stopping and Starting the Oscillator14Calibrating the Clock15Alarm15Watchdog Timer15Power Monitor16Interrupts16Flags Register16Accessing the Real Time Clock through SPI17Maximum Ratings22DC Electrical Characteristics22Data Retention and Endurance23Capacitance23Thermal Resistance23AC Test Conditions23AC Switching Characteristics24AutoStore or Power Up RECALL26Switching Waveforms26Software Controlled STORE/RECALL Cycles27Hardware STORE Cycle28Ordering Information29Part Numbering Nomenclature29Package Diagrams30Sales, Solutions, and Legal Information32Worldwide Sales and Design Support32Products32PSoC Solutions32Tamaño: 1000 KBPáginas: 32Language: EnglishManuales abiertas