參數(shù)資料
型號(hào)： MC13226V
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PBGA99
封裝： 9.50 X 9.50 MM, 1.20 MM HEIGHT, ROHS COMPLIANT, LGA-99
文件頁(yè)數(shù)： 7/54頁(yè)
文件大?。?/td> 490K
代理商： MC13226V
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC13226VR2 功能描述:射頻收發(fā)器 Kaibab PRO ROM SE 1.0 RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
MC1322X 制造商:FREESCALE 制造商全稱: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 制造商全稱: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:射頻收發(fā)器 82KB FLASH 5KB RAM RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
MC13233CR2 功能描述:射頻收發(fā)器 82KB FLASH 5KB RAM RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
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