Datasheet 搜索 > 微控制器 > ST Microelectronics（意法半导体） > STM8S207K6T3C 数据手册 > STM8S207K6T3C 开发手册 5/43 页
器件3D模型￥ 19.072
STM8S207K6T3C 开发手册 - ST Microelectronics（意法半导体）
制造商:
ST Microelectronics（意法半导体）
分类:
微控制器
封装:
LQFP-32
描述:
STM8S 8 位微控制器，STMicroelectronicsSTM8S 系列通用 8 位闪存微控制器是具有一个 3 级管线的 STM8 的高级芯型号。 STM8S 受益于在 24MHz 在操作高达 20MIPS 的高级芯体系架构。 嵌入式 EEPROM、RC 振荡器和完整的外围设备为设计人员提供坚固且可靠的解决方案。 ### STM8 8 位微控制器，STMicroelectronicsSTM8 平台已应用于高性能 8 位核心且是最先进的外围设备。 8 位微控制器以 16/24MHz 操作，具有高达 128kB 闪存、内部 RAM 和 EEPROM、8/16 位计时器、A/D 转换器、D/A 转换器、比较器、串行接口和可选显示控制器。
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页面导航:
引脚图在P9Hot
应用领域在P43
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STM8S207K6T3C数据手册
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AN2646 - Application note Smartcard interface description
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to the card. The length of an ETU is a bit time. The UART1 transmitter output and receiver
input are internally connected through the Rx_SW line. For the transmission of data from the
STM8S20x to the smartcard, the UART1 must be set up in smartcard mode.
Figure 1. ISO 7816-3 asynchronous protocol
1.4 Smartcard clock generator
The smartcard clock generator provides a clock signal to the connected smartcard. The
smartcard uses this clock to derive the baud rate clock for the serial I/O between the
smartcard and another UART1. The clock is also used for the CPU in the card, if present.
Operation of the smartcard interface requires that the clock rate to the card is adjusted while
the CPU in the card is running code so that the baud rate can be changed or the
performance of the card can be increased. The protocols that govern the negotiation of
these clock rates and the altering of the clock rate are detailed in the ISO 7816-3 standard.
The clock is used as the CPU clock for the smartcard, therefore updates to the
microcontroller clock rate must be synchronized to the smartcard clock, that is the clock high
or low pulse widths must not be shorter than either the old or new programmed value.
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