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STR710FZ1 数据表(PDF) 21 Page - STMicroelectronics |
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STR710FZ1 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 80 page ![]() STR71xFxx STR710RZ System architecture Doc ID 10350 Rev 13 21/80 125 A7 P0.2/S0.SCLK /I1.SCL I/O pu CT X4mA X X Port 0.2 BSPI0: Serial Clock I2C1: Serial clock Note: Programming AF function selects I2C by default. BSPI must be enabled by SPI_EN bit in the BOOTCR register. 126 A6 P0.3/S0.SS/ I1.SDA I/O pu CT 4mA X X Port 0.3 SPI0: Slave Select input active low. I2C1: Serial Data Note: Programming AF function selects I2C by default. BSPI must be enabled by SPI_EN bit in the BOOTCR register. 127 C7 P0.4/S1.MISO I/O pu CT 4mA X X Port 0.4 SPI1: Master in/Slave out data 128 D7 VSS18 S Stabilization for main voltage regulator. 129 E7 V18 S Stabilization for main voltage regulator. Requires external capacitors of at least 10µF + 33nF between V18 and VSS18. See Figure 5. 130 F7 A.14 O 7) 8mA X External Memory Interface: address bus 131 B6 A.15 O 7) 8mA X 132 C6 A.16 O 7) 8mA X 133 D6 A.17 O 7) 8mA X 134 E6 A.18 O 7) 8mA X 135 A5 A.19 O 7) 8mA X 136 B5 WE.1 O 5) 8mA X External Memory Interface: active low MSB write enable output 137 C5 WE.0 O 5) 8mA X External Memory Interface: active low LSB write enable output 138 A3 V33 S Supply voltage for digital I/Os4) 139 A2 VSS S Ground voltage for digital I/Os4) 140 D5 P0.5/S1.MOSI I/O pu CT 4mA X X Port 0.5 SPI1: Master out/Slave In data 141 A4 P0.6/S1.SCLK I/O pu CT X 4mA X X Port 0.6 SPI1: Serial Clock 142 B4 P0.7/S1.SS I/O pu CT 4mA X X Port 0.7 SPI1: Slave Select input active low Table 4. STR710 pin description Pin n° Pin name Input Output Main function (after reset) Alternate function |
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