參數(shù)資料
型號(hào)： STR910FM92X6T
廠商： 意法半導(dǎo)體
英文描述： ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
中文描述： ARM966E - ?商標(biāo)16/32位閃存微控制器與以太網(wǎng)，USB，加拿大，交流電機(jī)控制，4個(gè)定時(shí)器，模數(shù)轉(zhuǎn)換器，RTC和DMA的
文件頁(yè)數(shù)： 16/73頁(yè)
文件大?。?/td> 595K
代理商： STR910FM92X6T
Functional overview
STR91xF
16/73
2.10.6 Baud rate clock (BRCLK)
The baud rate clock is an internal clock derived from f
MSTR
that is used by the three on-chip
UART peripherals for baudrate generation. The frequency can be optionally divided by 2.
2.10.7 External memory interface bus clock (BCLK)
The BCLK is an internal clock that controls the EMI bus. All EMI bus signals are synchronized
to the BCLK. The BCLK is derived from the HCLK and the frequency can be configured to be
the same or half that of the HCLK. Refer to
Table 9 on page 50
for the maximum BCLK
frequency (f
BCLK
).
2.10.8 USB interface clock
Special consideration regarding the USB interface: The clock to the USB interface must operate
at 48 MHz and comes from one of three sources, selected under firmware control:
CCU master clock output of 48 MHz.
CCU master clock output of 96 MHz. An optional divided-by-two circuit is available to
produce 48 MHz for the USB while the CPU system runs at 96MHz.
STR91xF pin P2.7. An external 48 MHz oscillator connected to pin P2.7 can directly
source the USB while the CCU master clock can run at some frequency other than 48 or
96 MHz.
●
●
●
2.10.9 Ethernet MAC clock
Special consideration regarding the Ethernet MAC: The external Ethernet PHY interface device
requires it’s own 25 MHz clock source. This clock can come from one of two sources:
A 25 MHz clock signal coming from a dedicated output pin (P5.2) of the STR91xF. In this
case, the STR91xF must use a 25 MHz signal on its main oscillator input in order to pass
this 25 MHz clock back out to the PHY device through pin P5.2. The advantage here is that
an inexpensive 25 MHz crystal may be used to source a clock to both the STR91xF and
the external PHY device.
An external 25 MHz oscillator connected directly to the external PHY interface device. In
this case, the STR91xF can operate independent of 25 MHz.
●
●
2.10.10 External RTC calibration clock
The RTC_CLK (f
RTC/8
) can be enabled as an output on the JRTCK pin. The RTC_CLK is used
for RTC oscillator calibration. The RTC_CLK is active in Sleep mode and can be used as a
system wake up control clock.
2.10.11 Operation example
As an example of CCU operation, a 25 MHz crystal can be connected to the main oscillator
input on pins X1_CPU and X2_CPU, a 32.768 kHz crystal connected to pins X1_RTC and
X2_RTC, and the clock input of an external Ethernet PHY device is connected to STR91xF
output pin P5.2. In this case, the CCU can run the CPU at 96 MHz from PLL, the USB interface
at 48 MHz, and the Ethernet interface at 25 MHz. The RTC is always running in the background
at 32.768 kHz, and the CPU can go to very low power mode dynamically by running from
32.768 kHz and shutting off peripheral clocks and the PLL as needed.
相關(guān)PDF資料
PDF描述
STR910FM94X6T ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR910FW32X6 ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR910FW42X6T ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR910FW44X6T ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR910FW92X6T ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STR910FM94X6T 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:ARM966E-S TM 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA
STR910FW32X6 功能描述:ARM微控制器 - MCU TQFP 128 14x14x1.4 1 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
STR910FW32X6 制造商:STMicroelectronics 功能描述:256K Flash 64K sram CAN
STR910FW32X6T 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA
STR910FW34X6T 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA
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