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STR71XF 数据表(PDF) 18 Page - STMicroelectronics |
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STR71XF 数据表(HTML) 18 Page - STMicroelectronics |
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18 / 78 page ![]() System architecture STR71xF 18/78 107 D10 P1.13/HCLK/ I0.SCL I/O pd CT X 4mA X X Port 1.13 HDLC: reference clock input I2C clock 108 C11 P1.14/HRXD/ I0.SDA I/O pu CT X 4mA X X Port 1.14 HDLC: Receive data input I2C serial data 109 B11 N.C. Not connected (not bonded) 110 B10 N.C. Not connected (not bonded) 111 C10 P1.15/HTXD I/O pu CT 4mA X X Port 1.15 HDLC: Transmit data output 112 A9 VSS S Ground voltage for digital I/O circuitry4) 113 B9 V33 S Supply voltage for digital I/O circuitry4) 114 C9 A.5 O 7) 8mA X External Memory Interface: address bus 115 D9 A.6 O 7) 8mA X 116 A11 A.7 O 7) 8mA X 117 A10 A.8 O 7) 8mA X 118 A8 A.9 O 7) 8mA X 119 B8 A.10 O 7) 8mA X 120 C8 A.11 O 7) 8mA X 121 A12 A.12 O 7) 8mA X 122 D8 A.13 O 7) 8mA X 123 E8 P0.0/S0.MISO /U3.TX I/O pu CT 4mA X X Port 0.0 SPI0 Master in/Slave out data UART3 Transmit data output Note: Programming AF function selects UART by default. BSPI must be enabled by SPI_EN bit in the BOOTCR register. 124 B7 P0.1/S0.MOSI /U3.RX I/O pu CT X4mA X X Port 0.1 BSPI0: Master out/Slave in data UART3: Receive Data input Note: Programming AF function selects UART by default. BSPI must be enabled by SPI_EN bit in the BOOTCR register. Table 4. STR710 pin description Pin n° Pin name Input Output Main function (after reset) Alternate function |
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