參數(shù)資料
型號： CYRF69213
廠商： Cypress Semiconductor Corp.
英文描述： Programmable Radio on Chip Low Power
中文描述： 可編程片上無線電低功耗
文件頁數(shù)： 20/85頁
文件大小： 731K
代理商： CYRF69213
CYRF69213
Document #: 001-07552 Rev. *B
Page 20 of 85
0°–70°C). No external components are required to achieve
this level of accuracy.
The internal low-speed oscillator of nominally 32 KHz provides
a slow clock source for the CYRF69213 in suspend mode,
particularly to generate a periodic wake-up interrupt and also
to provide a clock to sequential logic during power-up and
power-down events when the main clock is stopped. In
addition, this oscillator can also be used as a clocking source
for the Interval Timer clock (ITMRCLK) and Capture Timer
clock (TCAPCLK). The 32-KHz Low-power Oscillator can
operate in low-power mode or can provide a more accurate
clock in normal mode. The Internal 32-KHz Low-power Oscil-
lator accuracy ranges (between 0° – 70° C) as follows:
5V Normal mode: –8% to + 16%
5V LP mode: +12% to + 48%
When using the 32-KHz oscillator the PITMRL/H should be
read until two consecutive readings match before
sending/receiving data. The following firmware example
assumes the developer is interested in the lower byte of the
PIT.
Read_PIT_counter:
mov A, reg[PITMRL]
mov [57h], A
mov A, reg[PITMRL]
mov [58h], A
mov [59h], A
mov A, reg{PITMRL]
mov [60h], A
;;;Start comparison
mov A, [60h]
mov X, [59h]
sub A, [59h]
jz done
mov A, [59h]
mov X, [58h]
sub A, [58h]
jz done
mov X, [57h]
;;;correct data is in memory location 57h
done:
mov [57h], X
ret
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CYRF69213_08 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Programmable Radio on Chip Low Power
CYRF69213_13 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Programmable Radio on Chip Low Power
CYRF69213-40LFXC 功能描述:射頻接收器 PRoC LP COM RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
CYRF69213-40LTXC 功能描述:8位微控制器 -MCU Programmable Radio on Chip Low Power RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
CYRF69213A-40LFXC 功能描述:8位微控制器 -MCU Programmable Radio on Chip Low Power RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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