參數(shù)資料
型號(hào)： 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)： 27/85頁
文件大小： 731K
代理商： CYRF69213
CYRF69213
Document #: 001-07552 Rev. *B
Page 27 of 85
Figure 11. Timer Capture Block Diagram
CPU Clock During Sleep Mode
When the CPU enters sleep mode the CPUCLK Select (Bit [0],
Table 33
) is forced to the internal oscillator, and the oscillator
is stopped. When the CPU comes out of sleep mode it is
running on the internal oscillator. The internal oscillator
recovery time is three clock cycles of the Internal 32-KHz
Low-power Oscillator.
If the system requires the CPU to run off the external clock
after awakening from sleep mode, firmware will need to switch
the clock source for the CPU.
Reset
The microcontroller supports two types of resets: Power-on
Reset (POR) and Watchdog Reset (WDR). When reset is
initiated, all registers are restored to their default states and all
interrupts are disabled.
The occurrence of a reset is recorded in the System Status and
Control Register (CPU_SCR). Bits within this register record
the occurrence of POR and WDR Reset respectively. The
firmware can interrogate these bits to determine the cause of
a reset.
The microcontroller resumes execution from Flash address
0x0000 after a reset. The internal clocking mode is active after
a reset, until changed by user firmware.
Note
The CPU clock defaults to 3 MHz (Internal 24-MHz Oscil-
lator divide-by-8 mode) at POR to guarantee operation at the
low V
CC
that might be present during the supply ramp.
16-bit counter
Configuration Status
and Control
Prescale Mux
Capture Registers
Interrupt Controller
1ms
timer
Overflow
Interrupt
Captimer Clock
System Clock
Capture0 Int
Capture1 Int
Table 37.Clock I/O Config (CLKIOCR) [0x32] [R/W]
Bit #
Field
Read/Write
Default
Bits 7:2
Bits 1:0
7
6
5
4
3
2
1
CLKOUT Select
R/W
0
0
Reserved
–
0
–
0
–
0
-
0
-
0
-
0
R/W
0
Reserved
CLKOUT Select
0 0 = Internal 24-MHz Oscillator
0 1 = External crystal oscillator – external crystal oscillator on CLKIN and CLKOUT if the external crystal oscillator is enabled,
CLKIN input if the external oscillator is disabled
1 0 = Internal 32-KHz Low-power Oscillator
1 1 = CPUCLK
[+] Feedback
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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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
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