 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
71M6534 Datasheet(PDF) 66 Page - Maxim Integrated Products |
|
||||||||||||||||||||||||||||||
71M6534 Datasheet(HTML) 66 Page - Maxim Integrated Products |
|
|
66 / 132 page  71M6533/G/H and 71M6534/H Data Sheet FDS_6533_6534_004 66 Rev 2 Figure 28: Wake Up Timing 2.5.2 Wake on Timer If the part is in SLEEP or LCD mode, it can be awakened by the wake-up timer. Until this timer times out, the MPU is in reset due to WAKE being low. When the wake-up timer times out, the WAKE signal rises and within three CK32 cycles, the MPU begins to execute. The MPU can determine whether the timer woke it by checking the AUTOWAKE interrupt flag (IE_WAKE). The wake-up timer begins timing when the part enters LCD or SLEEP mode. Its duration is controlled by WAKE_PRD[2:0] and WAKE_RES. WAKE_RES selects a timer LSB of either 1 minute (WAKE_RES = 1) or 2.5 seconds (WAKE_RES = 0). WAKE_PRD[2:0] selects a duration of from 1 to 7 LSBs. The timer is armed by WAKE_ARM = 1. It must be armed at least three RTC cycles before SLEEP or LCD_ONLY is initiated. Setting WAKE_ARM presets the timer with the values in WAKE_RES and WAKE_PRD and readies the timer to start when the processor writes to the SLEEP or LCD_ONLY bits. The timer is reset and disarmed whenever the processor is awake. Thus, if it is desired to wake the MPU periodically (every 5 seconds, for example) the timer must be rearmed every time the MPU is awakened. 2.6 Data Flow The data flow between the Compute Engine (CE) and the MPU is shown in Figure 29. In a typical application, the 32-bit CE sequentially processes the samples from the voltage inputs on pins IA, VA, IB, and VB, performing calculations to measure active power (Wh), reactive power (VARh), A2h, and V2h for four-quadrant metering. These measurements are then accessed by the MPU, processed further and output using the peripheral devices available to the MPU. Figure 29 illustrates the CE/MPU data flow. Figure 29: MPU/CE Data Flow time System Power (V3P3SYS) MPU Mode PLL_OK 15 CK32 cycles WAKE LCD PB or wake- up timer BROWNOUT CE MPU Pre - Processor Post - Processor IRQ Processed Metering Data Pulses I/O RAM (Configuration RAM) Samples Data |
Similar Part No. - 71M6534 |
|
Similar Description - 71M6534 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
allmanual.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
