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参数资料
| 型号： | EM250-RCM-R |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 28/124页 |
| 文件大小： | 0K |
| 描述： | EM250 RCM BOARD |
| 标准包装： | 12 |
| 类型： | 收发器，802.15.4/Zigbee |
| 频率： | 2.4GHz |
| 适用于相关产品： | EM250 |
| 其它名称： | 636-1023 |
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EM250
The GPIO_DBG register must always remain set to zero. The GPIO_CFG register controls the GPIO signal
routing for alternate GPIO functions as listed in Table 17. Refer to Table 1 for individual pin alternate
functions.
Table 18 defines the alternate functions routed to the GPIO. To allow more flexibility, the timer signals can
come from alternative sources (e.g., TIM1IA.1, TIM1IA.2, TIM1IA.3), depending on what serial controller
functions are used.
The Always Connected input functions labeled IRQA, IRQB, IRQC, and IRQD refer to the external interrupts.
GPIO8, GPIO14, GPIO15, and GPIO16 are the only pins designed to operate as external interrupts (IRQs). These
pins offer individual filtering options, triggering options, and interrupt configurations. The minimum width
needed to latch an unfiltered external interrupt in both level and edge triggered mode is 80ns. With the filter
engaged via the GPIO_INTFILT bit, the minimum width needed is 450ns. Other alternate functions such as
timer input captures are capable of generating an interrupt based upon external signals, but these other
alternate functions do not contain the flexibility offered on the four external interrupts (IRQs).
When the core is powered down, peripherals stop driving correct output signals. To maintain correct output
signals, the system software will ensure that the GPIO output signals are frozen before going into deep sleep.
Note:
Enabling alternate functions do not overwrite the pull-up and pull-down configurations, but the
alternate function outputs are all forced to be totem-pole (except I 2 C).
Monitoring circuitry is in place to detect when the logic state of GPIO input pins change. The lower 16 GPIO
pins that should be monitored can be chosen by software with the GPIO_WAKEL register. The resulting event
can be used for waking up from deep sleep as described in section 4.15.
120-0082-000V Rev 1.1
Page 28
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EM250-RTR | 功能描述:IC ZIGBEE SYSTEM-ON-CHIP 48-QFN RoHS:是 类别:RF/IF 和 RFID >> RF 收发器 系列:EM250 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:30 系列:- 频率:4.9GHz ~ 5.9GHz 数据传输率 - 最大:54Mbps 调制或协议:* 应用:* 功率 - 输出:-3dBm 灵敏度:- 电源电压:2.7 V ~ 3.6 V 电流 - 接收:* 电流 - 传输:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 工作温度:-25°C ~ 85°C 封装/外壳:68-TQFN 裸露焊盘 包装:管件 |
| EM250-STACK-R | 制造商:Silicon Laboratories Inc 功能描述:EM250 BOARD STACK (RCM + BREAKOUT) - Boxed Product (Development Kits) 制造商:Silicon Laboratories Inc 功能描述:BOARD STACK EM250 RCM & BREAKOUT |
| EM25-12V-DC | 制造商:ECLIPSE MAGNETICS 功能描述:HOLDING ELECTRO MAGNET |
| EM2513N/11560 | 制造商:ebm-papst Inc 功能描述:- Bulk |
| EM2524N/11560 | 制造商:ebm-papst Inc 功能描述:- Bulk |
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