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STM32F103RBH7TR Datasheet(PDF) 17 Page - STMicroelectronics |
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STM32F103RBH7TR Datasheet(HTML) 17 Page - STMicroelectronics |
17 / 92 page STM32F103x8, STM32F103xB Description Doc ID 13587 Rev 11 17/92 SysTick timer This timer is dedicated for OS, but could also be used as a standard downcounter. It features: ● A 24-bit downcounter ● Autoreload capability ● Maskable system interrupt generation when the counter reaches 0 ● Programmable clock source 2.3.16 I²C bus Up to two I²C bus interfaces can operate in multimaster and slave modes. They can support standard and fast modes. They support dual slave addressing (7-bit only) and both 7/10-bit addressing in master mode. A hardware CRC generation/verification is embedded. They can be served by DMA and they support SM Bus 2.0/PM Bus. 2.3.17 Universal synchronous/asynchronous receiver transmitter (USART) One of the USART interfaces is able to communicate at speeds of up to 4.5 Mbit/s. The other available interfaces communicate at up to 2.25 Mbit/s. They provide hardware management of the CTS and RTS signals, IrDA SIR ENDEC support, are ISO 7816 compliant and have LIN Master/Slave capability. All USART interfaces can be served by the DMA controller. 2.3.18 Serial peripheral interface (SPI) Up to two SPIs are able to communicate up to 18 Mbits/s in slave and master modes in full- duplex and simplex communication modes. The 3-bit prescaler gives 8 master mode frequencies and the frame is configurable to 8 bits or 16 bits. The hardware CRC generation/verification supports basic SD Card/MMC modes. Both SPIs can be served by the DMA controller. 2.3.19 Controller area network (CAN) The CAN is compliant with specifications 2.0A and B (active) with a bit rate up to 1 Mbit/s. It can receive and transmit standard frames with 11-bit identifiers as well as extended frames with 29-bit identifiers. It has three transmit mailboxes, two receive FIFOs with 3 stages and 14 scalable filter banks. 2.3.20 Universal serial bus (USB) The STM32F103xx performance line embeds a USB device peripheral compatible with the USB full-speed 12 Mbs. The USB interface implements a full-speed (12 Mbit/s) function interface. It has software-configurable endpoint setting and suspend/resume support. The dedicated 48 MHz clock is generated from the internal main PLL (the clock source must use a HSE crystal oscillator). |
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