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CC2430F32RTC 参数 Datasheet PDF下载

CC2430F32RTC图片预览
型号: CC2430F32RTC
PDF下载: 下载PDF文件 查看货源
内容描述: 真正的系统级芯片解决方案的2.4 GHz IEEE 802.15.4 / ZigBee的 [A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee]
分类和应用: 电信集成电路
文件页数/大小: 212 页 / 1862 K
品牌: TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
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CC2430  
Radio : Command strobes  
TC  
1
0
1
1
0
1
0
1
0
1
0
0
0
0
1
1
I-phase  
Q-phase  
1
1
0
1
1
0
0
1
1
1
0
0
0
0
1
0
2TC  
Figure 34: I / Q Phases when transmitting a zero-symbol chip sequence, TC = 0.5 µs  
14.2 Command strobes  
The CPU uses a set of command strobes to  
control operation of the radio in CC2430.  
individually to the radio or they can be given in  
a sequence together with a set of dedicated  
software instructions making up a simple  
program. All command strobes from the CPU  
to the radio pass through the CSMA-  
CA/Command Strobe Processor (CSP).  
Detailed description about the CSP and how  
command strobes are used is given in section  
14.34 on page 176.  
Command strobes may be viewed as single  
byte instructions which each control some  
function of the radio. These command strobes  
must be used to enable the frequency  
synthesizer, enable receive mode, enable  
transmit mode and other functions.  
A total of nine command strobes are defined  
for the radio and these can be written  
14.3 RF Registers  
The operation of the radio is configured  
through a set of RF registers. These RF  
registers are mapped to XDATA memory  
space as shown in Figure 7 on page 31.  
The RF registers control/status bits are  
referred to where appropriate in the following  
sections while section 14.35 on page 183  
gives a full description of all RF registers.  
The RF registers also provide status  
information from the radio.  
14.4 Interrupts  
The radio is associated with two interrupt  
vectors on the CPU. These are the RFERR  
interrupt (interrupt 0) and the RF interrupt  
(interrupt 12) with the following functions  
The RF interrupt vector combines the  
interrupts in RFIF shown on page 156. Note  
that these RF interrupts are rising- edge  
triggered. Thus an interrupt is generated when  
e.g. the SFD status flag goes from 0 to 1.  
RFERR : TXFIFO underflow, RXFIFO  
overflow  
RF : all other RF interrupts given by RFIF  
interrupt flags  
The RFIF interrupt flags are described in the  
next section.  
14.4.1  
Interrupt registers  
Two of the main interrupt control SFR registers  
are used to enable the RF and RFERR  
interrupts. These are the following:  
RFERR  
RF  
: TCON.RFERRIF  
: S1CON.RFIF  
Refer to section 11.5 on page 49 for details  
about the interrupts.  
RFERR  
RF  
: IEN0.RFERRIE  
: IEN2.RFIE  
The RF interrupt is the combined interrupt from  
eight different sources in the radio. Two SFR  
registers are used for setting the eight  
individual RFIF radio interrupt flags and  
interrupt enables. These are the RFIF and  
RFIMregisters.  
Two main interrupt flag SFR registers hold the  
RF and RFERR interrupt flags. These are the  
following:  
CC2430 Data Sheet (rev. 2.1) SWRS036F  
Page 155 of 211