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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STW4811MBRA/LF датащи(PDF) 31 Page - STMicroelectronics |
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STW4811MBRA/LF датащи(HTML) 31 Page - STMicroelectronics |
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31 / 86 page  Functional description STw4811M/STw4811N 30/85 Registers controlled by main I2C BUS I2C controlled registers are controlled through the main serial I2C interface, SCL and SDA balls. Configuration 1 register In Flash OTP two registers allow to program STw4811 energy management part. These two registers are at addresses 1E and 1F and must be programmed with 1F register first followed by 1E register. Table 18. Configuration 1 register (11h) 76 5 4 3 2 1 0 pdn_vaux it_warn monitoring_vio_ vmem_vcore mmc_ls_ status vmmc_sel[2:0] pdn_ vmmc R/W R(1) R(1) 1. These bits are reset (0) after reading R/W R/W R/W Bits Name Value Settings Default 7 pdn_vaux 0 1 Inactive Enable LDO vaux 0(1) 1. In STw4811M, pdn_vaux = 0 is the default. In STw4811N, pdn_vaux = 1 is the default. 6it_warn 0 1 Below temperature threshold Above temperature threshold 0 5 monitoring_vio_ vmem_vcore 0 1 Outputs in the good range Outputs lower than expected on vio_vmem or vcore 0 4 mmc_ls_status 0 1 Level shifters ON, if ‘pdn_vmmc’ or ‘external_vmmc’ = 1 Level shifters High Impedance, if ‘pdn_vmmc’ or ‘external_vmmc’ =1 0 [3:1] vmmc_sel[2:0] 000 001 010 011 100 101 110 111 1.8V selection 1.8V selection 2.85V selection 3V selection 1.85 V selection 2.6 V selection 2.7 V selection 3.3 V selection 000 0 pdn_vmmc 0 1 Inactive Enable SD/MMC/SDIO function. 0 |
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