STBY是一个可以连接到MCU的输入。待机输入引脚极性可以通过STBY_POLARITY_OTP位编程为在待机模式下的高电平有效或低电平有效。 STBY功能应通过STBY_EN_OTP位启用。有两种可能的进入待机模式的路径(通过STBY_SAFE_DIS_OTP位选择): 仅使用STBY引脚转换的标准路径, 使用I2C请求(STBY_REQ位)+ STBY引脚转换的安全路径。
Solved: Hi community, I want to confirm about i.MX6 PMIC_STBY_REQ behavior. Actually, PMIC_STBY_REQ of i.MX6D is tied to STANDBY pin of MMPF0100 on
/* Buck 1 DVS control through PMIC_STBY_REQ */pmic_reg_write(p, PCA9450_BUCK1CTRL, 0x59); /* Set DVS1 to 0.8v for suspend */pmic_reg_write(p, PCA9450_BUCK1OUT_DVS1, 0x10); /* increase VDD_DRAM to 0.95v for 3Ghz DDR */pmic_reg_write(p, PCA9450_BUCK3OUT_DVS0, 0x1C...
Figure 18. Example of LPM communication ACTIVE PATTERN WAKE_LPM SPI_REQ NRST FAULT operating mode SPI_NA INIT SPI_CMD LPM_REQ ACTIVE 1ms SPI_NA LPM In case of FAULT during the LPM request, LPM entering is aborted. The device moves to REC state. In case WAKE_LPM is set high during T...
TIMER_STBY_WINDOW STBY Pin transition only Close INIT_FS with 1x good WD refresh Launch ABIST2 if needed Start Standby Mode entry Wait 1.2 ms STBY Pin transition only or STBY_REQ and STBY Pin transition ABIST2_OK == 1 Yes Decrease FLT_ERR_CNT to `0' with WD_ERR_LIMIT good WD ...
Inquiry about PMIC (PCA9450CHN) output of I.MX 8M PLUS The design was carried out using I.MX 8M PLUS. When the input power is turned on, the output of BUCK1/3 and BUCK2 is output like a file. PMIC_RST_B signal: H PMIC_ON_REQ...
/* Buck 1 DVS control through PMIC_STBY_REQ */pmic_reg_write(p, PCA9450_BUCK1CTRL, 0x59); /* Set DVS1 to 0.8v for suspend */pmic_reg_write(p, PCA9450_BUCK1OUT_DVS1, 0x10); /* increase VDD_DRAM to 0.95v for 3Ghz DDR */pmic_reg_write(p, PCA9450_BUCK3OUT_DVS0, 0x1C...
Inquiry about PMIC (PCA9450CHN) output of I.MX 8M PLUS The design was carried out using I.MX 8M PLUS. When the input power is turned on, the output of BUCK1/3 and BUCK2 is output like a file. PMIC_RST_B signal: H PMIC_ON_REQ signal: H PMI...
Low = 1.8 V LDO1 Enable Enabled TPS6521907RHBR N/A TPS6521907 TRM Mode and Standby SD High = VOUT Low = 1.8 V LDO1 Enable Enabled TPS6521908RHBR N/A [1] First Supply detection allows power-up as soon as supply voltage is applied, even if EN/PB/VSENSE pin is at OFF_REQ status...
The OFF-request can be triggered by a falling edge on EN/PB/VSENSE if configured for EN or VSENSE respectively a long press of the push-button if configured as PB or by an I2C-command to I2C_OFF_REQ in MFP_CTRL register. This bit self-clears. An I2C-triggered shut-down requires a ...