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BK3266TS28 Datasheet(PDF) 17 Page - Beken Corporation |
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BK3266TS28 Datasheet(HTML) 17 Page - Beken Corporation |
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17 / 28 page  BK3266 Datasheet v 0.5 © 2017 Beken Corporation Proprietary and Confidential Page 17 of 28 GPIO Peripheral Mode GPIO0 UART_TXD/I2C_SCL GPIO1 UART_RXD/I2C_SDA GPIO2 SPI_CSN/ADC1/IrDA/Capture Time GPIO3 SPI_SCK/ADC2/CLKOUT GPIO4 SPI_MOSI//I2C_SCL/Line in L GPIO5 SPI_MISO//I2C_SDA/Line in R GPIO6 PWM0 / USBP GPIO7 PWM1 / USBN GPIO8 SD_CLK//SPI2_SCK GPIO9 SD_CMD/TX_EN/SPI2_MOSI GPIO10 SD_DATA0/RX_EN/SPI2_MISO GPIO11 JTAG_TCK/PWM2/ADC4/PCM_SYNC/SD_CLK//SPI2_SCK GPIO12 JTAG_TMS/PWM3/PCM_CLK/SD_CMD/SPI2_MOSI GPIO13 JTAG_TDI/PWM4/ADC6/PCM_DIN/SD_DATA0/SPI2_MISO GPIO14 JTAG_TDO/PWM5/ADC7/PCM_DOUT GPIO15 Shutdown IO (Shutdown mode, wake up by active high) Table 4 GPIO Function Mapping All GPIO pins can wake up the internal MCU from standby mode. In standby mode, any level change on the set GPIO will trigger the wake up procedure. In shutdown mode, system can be only waked up by GPIO15 high level. 3.12. Timer and Watch Dog Timer There are two sets of timers. One set (fast) uses 1 MHz clock as the main clock, and another set (slow) uses divided 100 kHz clock as main clock. Each set has three 16-bit counters with 4-bit pre-divider. The watch dog timer runs from the RC 100 kHz clock and has a maximum programmable period of up to 10.48 (2^16/100kHz * 16) seconds. 3.13. PWM output There are six PWM timers to provide six PWM output on GPIO. All the timers run with the same frequency, which can be either 26 MHz clock or low power clock. The PWM timer has 16 bit resolution, with 1~16 pre scalar. |
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