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参数资料
| 型号： | MC13226V |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PBGA99 |
| 封装： | 9.50 X 9.50 MM, 1.20 MM HEIGHT, ROHS COMPLIANT, LGA-99 |
| 文件页数： | 7/54页 |
| 文件大小： | 490K |
| 代理商： | MC13226V |
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MC1322x Technical Data, Rev. 1.3
Freescale Semiconductor
15
Figure 4. Optional Buck Regulator
3.3.4
Battery
Voltage Monitor
An optional feature of the ADC module is a battery voltage monitor capability. An onboard 1.2 Vdc
reference voltage can be sampled by the ADC module. The battery-sourced supply voltage is used as the
high reference voltage for the ADC and as the supply voltage lowers due to battery usage, the onboard
reference voltage reading will become greater because this fixed voltage is a higher percentage of the
reduced supply voltage.
Programmable high and low thresholds are provided for an ADC analog sample channel to monitor the
reference voltage. This feature can be used as a trigger to provide low battery indication, protection for
data that may be lost due to end-of-life for the battery, monitoring charging, and controlling buck regulator
operation.
3.4
IEEE 802.15.4 Acceleration Hardware
The MC1322x provides acceleration hardware for IEEE 802.15.4 applications and this hardware includes
802.15.4 MAC acceleration and AES encryption/decryption.
3.4.1
802.15.4 MAC Accelerator (MACA) Overview
The MC1322x contains a hardware block that provides a low-level MAC and PHY link controller, which
together with software running on the ARM core, implements the baseband protocols and other low-level
link routine control and link control. Components of the MACA include a sequencer/controller (with
timers), TX and RX packet buffers, DMA block, frame check sequence (FCS) generator/checker, and
control registers. Figure 5 shows a MACA simplified block diagram.
As part of the 802.15.4 protocol, packets are generated and transmitted, packets are received and verified,
and channel energy is measured via a clear channel assessment (CCA). Also, combinations or sequences
of events are required as part of the protocol such as an ACK response following a received packet. The
MACA facilitates these activities via control of the transceiver and off loads the functions from the CPU.
A dedicated DMA function moves data between the MACA buffers and RAM on a cycle steal basis and
does not require intervention from the CPU.
VBATT
COIL_BK
LR EG_BK_F B
VDD
NC
LREG_BK_F B
VDD
L2
100uH
C2
10uF
COIL_BK
VBATT
Normal Operation
D1
DIODE SCHOTTKY
Buck Regulator Enabled
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC13226VR2 | 功能描述:射频收发器 Kaibab PRO ROM SE 1.0 RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MC1322X | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advanced ZigBee?- Compliant Platform-in-Package (PiP) for the 2.4 GHz IEEE? 802.15.4 Standard |
| MC132333C | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Low Cost SoC Remote Control Platform for the 2.4 GHz IEEE? 802.15.4 Standard |
| MC13233C | 功能描述:射频收发器 82KB FLASH 5KB RAM RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MC13233CR2 | 功能描述:射频收发器 82KB FLASH 5KB RAM RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
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