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| 型号： | CC2480A1RTC |
| 厂商： | Texas Instruments |
| 文件页数： | 23/48页 |
| 文件大小： | 0K |
| 描述： | IC Z-ACCEL ZIGBEE PROC 48-VQFN |
| 产品培训模块： | RFID Technology and Applications |
| 标准包装： | 260 |
| 系列： | CC2480 |
| 频率： | 2.4GHz |
| 数据传输率 - 最大： | 115kBaud |
| 调制或协议： | 802.15.4 Zigbee |
| 应用： | AMR，ISM，SRD |
| 功率 - 输出： | 0dBm |
| 灵敏度： | -92dBm |
| 电源电压： | 2 V ~ 3.6 V |
| 电流 - 接收： | 27mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 48-VFQFN 裸露焊盘 |
| 包装： | 托盘 |
| 配用： | EZ430-RFZACC06-ND - EZ430-RFZACC06 296-23357-ND - KIT DEMO FOR CC2480 |
| 其它名称： | 296-23580 |
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CC2480
9
Peripherals
In the following sub-sections the user-
accessible CC2480 peripheral modules are
described in detail.
9.1
Reset
The CC2480 has four reset sources. The
following events generate a reset:
The initial conditions after a reset are as
follows:
?
?
?
?
Forcing RESET_N input pin low
A power-on reset condition
A brown-out reset condition
A firmware-generated
(SYS_RESET_REQ [2])
reset
?
?
I/O pins are configured as inputs with pull-
up
See the CC2480 Interface Specification [2]
for a description of the interaction between
CC2480 and the host processor after
reset.
9.1.1
Power On Reset and Brown Out Detector
The CC2480 includes a Power On Reset (POR)
providing correct initialization during device
power-on. Also includes is a Brown Out
Detector (BOD) operating on the regulated
1.8V digital power supply only, The BOD will
protect the memory contents during supply
voltage variations which cause the regulated
1.8V power to drop below the minimum level
required by flash memory and SRAM.
When power is initially applied to the CC2480
the Power On Reset (POR) and Brown Out
Detector (BOD) will hold the device in reset
state until the supply voltage reaches above
the Power On Reset and Brown Out voltages.
Figure 6 shows the POR/BOD operation with
the 1.8V (typical) regulated supply voltage
together with the active low reset signals
BOD_RESET and POR_RESET shown in the
bottom of the figure (note that signals are not
available, just for illustration of events).
VOLT
BOD RESET ASSERT
POR RESET DEASSERT RISING VDD
POR RESET ASSERT FALLING VDD
0
POR OUTPUT
BOD RESET
POR RESET
X
X
X
1.8V REGULATED
UNREGULATED
X
X
X
Figure 6 : Power On Reset and Brown Out Detector Operation
9.2
I/O ports
The CC2480 has digital input/output pins that
have the following key features:
?
?
?
General purpose I/O or peripheral I/O
Pull-up or pull-down capability on inputs
External interrupt capability
Two of the I/O pins have external interrupts
that can be used to wake up the device from
sleep modes.
CC2480 Data Sheet SWRS074
Page 23 of 43
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