EM78P447SAP-G DATASHEET PDF
Table 1 EM78PSAP, EM78PSAM and EM78PSFK Pin Description 37 EM78PS-G I-V Curve Operating at kHz max. EM78PSAP Datasheet PDF Download -, EM78PSAP data sheet. EM78PSAP datasheet, EM78PSAP datasheets and manuals electornic semiconductor part. EM78P, EM78PN, EM78PNAM, EM78PNAP .
|Published (Last):||18 December 2008|
|PDF File Size:||10.8 Mb|
|ePub File Size:||4.28 Mb|
|Price:||Free* [*Free Regsitration Required]|
R3F can be cleared by instruction, but cannot datwsheet set by instruction. Any instruction that writes to R2 e. Bit 5 and Bit4: Programmable free running watchdog timer?
Code Security Bit 0: Once in the interrupt service routine, the source of an interrupt can be determined by polling the flag bits in R3F. This way, the EM78PS will reset and work normally.
The Program Counter R2 is set to all “1”. VDD, Prescaler Set to 1: Enable the wake-up function. RC oscillator input pin. The oscillator is disabled oscillator is stopped, and the controller enters into SLEEP2 mode on the high-to-low transition and is enabled controller is awakened from SLEEP2 mode on dstasheet transition. Em78p447sao-g 4, Zurich, Switzerland Telephone: Upon waking, the controller will continue to execute the succeeding address.
Its major function is to act as an indirect addressing pointer. Table 6 daatasheet the events that may affect the status of T and P. Since each resonator has its own attribute, user should refer to its specification for appropriate values of C1 and C2.
These can be pulled-high internally by software control. The capacitor C will discharge rapidly and fully. Ek78p447sap-g 7 depicts how these three modes are defined.
High quality EM78P447SAP-G EL6201CU EKMH100VSN683MA50S IC In Stock
The oscillator starts or is running? There is input status change wake-up function on Port 6, P74, and P In this case, the execution takes two instruction cycles. All the information and explanations of the Products in this website is only for your reference.
When an interrupt is generated by the INT instruction enabledthe next instruction will be fetched from address H. ELAN owns the intellectual property rights, concepts, ideas, inventions, know-how whether patentable or not related to the Information and Technology herein after referred as ” Information and Technology” mentioned above, and all its related industrial property rights throughout the world, as now may exist or to be created in the future.
Output terminal for crystal oscillator or external clock input pin. For design reference only.
EM78PSAP Datasheet(PDF) – ELAN Microelectronics Corp
SLPC is used to control the oscillator operation. The WDT can be enabled or disabled any time during normal mode by software programming. During normal operation or sleep mode, a WDT time-out if enabled will cause the device to reset. The diode D acts as a short circuit at the moment of power down.
(PDF) EM78P447SAP Datasheet download
Thus, the computed jump is limited to the first locations of a page. CONT register is both readable and writable. The device characteristic illustrated herein are not guaranteed for it accuracy.
Input is driven at 2. Bit 4 T Time-out bit.
The extra external reset circuit will work well if Vdd can rise at very fast speed 50 ms or less. The residue-voltage may trips below Vdd minimum, but not to zero. The ROC bit can be read and written.
EM78PSAP 데이터시트(PDF) – ELAN Microelectronics Corp
Two clocks per instruction cycle? Internal data transfer, or instruction operand holding. The interrupt flag bit must be cleared by instructions before leaving the interrupt service routine and before interrupts are enabled to avoid recursive interrupts.
Crystal input terminal or external clock input pin. IOCF is the interrupt mask register. Bit 3 PAB Prescaler assignment bit. Normally, datasjeet instructions are executed dayasheet one single instruction cycle one instruction consists of 2 oscillator periodsunless the program counter is changed by instruction “MOV R2,A”, “ADD R2,A”, or by instructions of arithmetic or logic operation on R2 e.
Individual interrupt is enabled by setting its associated control bit dxtasheet the IOCF to “1”. In order to maintain a stable system frequency, the values of the Cext should not be less than 20pF, and that the value of Rext should not be greater than 1 M ohm. IOCF register is both readable and writable. In order to ensure the stable output em78p447sap-gg the oscillator, once the oscillator is enabled again, there is a delay for approximately 18ms1 oscillator start-up timer, OST before the next instruction of the program is executed.
If this pin remains at logic low, the controller will also remain in reset condition. A Change one instruction cycle to consist of 4 oscillator periods. Watchdog timer enable bit. Instruction em78p447spa-g option bit. This circuit is used when the power supply has slow rise time.