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): 21/85頁
文件大?。?/td> 731K
代理商: CYRF69213
CYRF69213
Document #: 001-07552 Rev. *B
Page 21 of 85
Clock Architecture Description
The CYRF69213 clock selection circuitry allows the selection
of independent clocks for the CPU, USB, Interval Timers, and
Capture Timers.
The CPU clock, CPUCLK, can be sourced from the external
crystal oscillator or the Internal 24-MHz Oscillator. The
selected clock source can optionally be divided by 2
n
where
n
is 0–5,7 (see
Table 34
).
USBCLK, which must be 12 MHz for the USB SIE to function
properly, can be sourced by the Internal 24-MHz Oscillator or
the external crystal oscillator. An optional divide-by-two allows
the use of the 24-MHz source.
The Interval Timer clock (ITMRCLK), can be sourced from the
external crystal oscillator, the Internal 24-MHz Oscillator, the
Internal 32-KHz Low-power Oscillator, or from the timer
capture clock (TCAPCLK). A programmable prescaler of 1, 2,
3, 4 then divides the selected source.
The Timer Capture clock (TCAPCLK) can be sourced from the
external crystal oscillator, Internal 24-MHz Oscillator, or the
Internal 32-KHz Low-power Oscillator.
When it is not being used by the external crystal oscillator, the
CLKOUT pin can be driven from one of many sources. This is
used for test and can also be used in some applications. The
sources that can drive the CLKOUT are:
CLKIN after the optional EFTB filter
Internal 24-MHz Oscillator
Internal 32-KHz Low-power Oscillator
CPUCLK after the programmable divider
Figure 9. Clock Block Diagram
CPU_CLK
EXT
24 MHz
MUX
CLK_USB
SEL
SCALE
CLK_24MHz
CLK_EXT
CPUCLK
SEL
MUX
SCALE (divide by 2
n
,
n = 0-5,7)
CLK_32
KHz
LP OSC
32 KHz
SEL
0
0
1
1
SCALE
X
X
1
1
OUT
12 MHz
12 MHz
EXT/2
EXT
[+] Feedback
相關(guān)PDF資料
PDF描述
CYRF69213-40LFXC Programmable Radio on Chip Low Power
CYRF6936-40LFXC WirelessUSB⑩ LP 2.4 GHz Radio SoC
CYS25G0101DX-ATC SONET OC-48 Transceiver
CYS25G0101DX-ATI SONET OC-48 Transceiver
CYS25G0101DX-ATXC SONET OC-48 Transceiver
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(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(fēng)格:SMD/SMT