XIB-E【PDF 14/64 页】BOARD INTERFACE ETHERNET

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录58

10页 11页 12页 13页 [14页]15页 16页 17页 18页

XStream"燨EM燫F燤odule?燩roduct燤anual爒5.x00燵2006.02.24]?/DIV>

Pin Sleep (SM = 1)

Pin Sleep requires the least amount of power. In order to achieve this state, SLEEP pin must be

asserted (high). The module remains in Pin Sleep until the SLEEP pin is de-asserted.

After enabling Pin Sleep Mode, the SLEEP pin controls whether the module is active or in Sleep

Mode. When SLEEP is de-asserted (low), the module is fully operational. When SLEEP is asserted

(high), the module transitions to Sleep Mode and remains in its lowest power-consuming state

until the SLEEP pin is de-asserted. SLEEP is only active if the module is setup to operate in this

mode; otherwise the pin is ignored.

Once in Pin Sleep Mode,

is de-asserted (high), indicating that data should not be sent to the

module. The PWR pin is also de-asserted (low) when the module is in Pin Sleep Mode.

Note: The module will complete a transmission or reception before activating Pin Sleep.

Serial Port Sleep (SM = 2)

Serial Port Sleep is a Sleep Mode in which the XStream Module runs in a low power state until

serial data is detected on the DI pin.

When Serial Port Sleep is enabled, the module goes into Sleep Mode after a user-defined period

of inactivity (no transmitting or receiving of data). This period of time is determined by ST (Time

before Sleep) Command. Once a character is received through the DI pin, the module returns to

Idle Mode and is fully operational.

Cyclic Sleep (SM = 3-8)

Cyclic Sleep is the Sleep Mode in which the XStream Module enters into a low-power state and

awakens periodically to determine if any transmissions are being sent.

When Cyclic Sleep settings are enabled, the XStream Module goes into Sleep Mode after a user-

defined period of inactivity (no transmission or reception on the RF channel). The user-defined

period is determined by ST (Time before Sleep) Command.

While the module is in Cyclic Sleep Mode,

is de-asserted (high) to indicate that data should

not be sent to the module during this time. When the module awakens to listen for data,

asserted and any data received on the DI Pin is transmitted. The PWR pin is also de-asserted

(low) when the module is in Cyclic Sleep Mode.

The module remains in Sleep Mode for a user-defined period of time ranging from 0.5 seconds to

16 seconds (SM Parameters 3 through 8). After this interval of time, the module returns to Idle

Mode and listens for a valid data packet for 100 ms. If the module does not detect valid data (on

any frequency), the module returns to Sleep Mode. If valid data is detected, the module

transitions into Receive Mode and receives incoming RF packets. The module then returns to

Sleep Mode after a Period of inactivity that is determined by ST Time before Sleep Command.

The module can also be configured to wake from cyclic sleep when SLEEP (pin 2) is de-asserted

(low). To configure a module to operate in this manner, PW (Pin Wake-up) Command must be

issued. Once SLEEP is de-asserted, the module is forced into Idle Mode and can begin

transmitting or receiving data. It remains active until no data is detected for the period of time

specified by the ST Command, at which point it resumes its low-power cyclic state.

Note: The cyclic interval time defined by SM (Sleep Mode) Command must be shorter than the

interval time defined by LH (Wake-up Initializer Timer).

For example: If SM=4 (Cyclic 1.0 second sleep), the LH Parameter should equal 0x0B (1.1

seconds). With these parameters set, there is no risk of the receiving module being asleep for the

duration of wake-up initializer transmission. Cyclic Scanning explains in further detail the

relationship between Cyclic Sleep and Wake-up Initializer Timer

牋牘?006燤axStream,營nc.燙onfidential燼nd燩roprietary?/DIV>

14?/DIV>

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式