数据搜索系统,热门电子元器件搜索 |
|
SI3483 数据表(PDF) 7 Page - Silicon Laboratories |
|
SI3483 数据表(HTML) 7 Page - Silicon Laboratories |
7 / 52 page Si3483 Confidential Rev. 1.1 7 Figure 4. Grant Based Power Management Figure 5. Consumption-Based Power Management If the granting policy is grant based, then the power remaining for new grants is the total ungranted power. The power remaining is the total power provided minus the total power granted. The problem with this approach is that much of the provided power is unused because PDs often do not consume all of their granted power. If the granting policy is consumption-based, then the power remaining for new grants is the total unconsumed power. The power remaining is the total power provided minus the total power consumed (excluding the reserved power). This approach uses more of the provided power, but there is a possibility that the system may consume more power than the power provided (system overload). To avoid system overloads caused by momentary surges in power consumption, the host can specify that a certain amount of power be held in reserve. The Si3483 does not use the reserved power when granting new requests. Most power supplies can tolerate a limited amount of overload for a short duration. The host specifies the overload limit of the power supplies to the Si3483. If a system overload is less than the overload limit, the Si3483 turns off ports, one at a time in priority order, until the system is no longer overloaded. If a system overload is greater than the overload limit (severe overload), the Si3483 immediately turns off all low-priority ports. If the system is still overloaded, the Si3483 turns off additional ports, one at a time in priority order, until the system is no longer overloaded. A severe overload is usually caused by removing a power supply. 2.1. Host Interface The Si3483 has a UART interface and an SPI interface for communicating with the host MCU, but only one interface is used at a time. The PSLCT (protocol select) pin selects which interface is used. 2.1.1. UART Interface If the PSLCT pin is tied high, then the Si3483 uses the UART interface to communicate with the host MCU. The Si3483 uses the TX and RX pins to send and receive serial data. The BAUD0, BAUD1, and BAUD2 pins select the baud rate for the UART interface. |
类似零件编号 - SI3483 |
|
类似说明 - SI3483 |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 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 |