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SPC56AP54X 数据表(PDF) 63 Page - STMicroelectronics |
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SPC56AP54X 数据表(HTML) 63 Page - STMicroelectronics |
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63 / 104 page  SPC56xP54x, SPC56xP60x Electrical characteristics Doc ID 18340 Rev 3 63/104 Figure 12. Brown-out typical sequence 3.10 NVUSRO register Portions of the device configuration, such as high voltage supply, and watchdog enable/disable after reset are controlled via bit values in the non-volatile user options register (NVUSRO) register. For a detailed description of the NVUSRO register, please refer to the device reference manual. 3.10.1 NVUSRO[PAD3V5V] field description Table 19 shows how NVUSRO[PAD3V5V] controls the device configuration. The DC electrical characteristics are dependent on the PAD3V5V bit value. VDD_HV_REG 0V 3.3V 0V 3.3V VDD_LV_REGCOR 0V 1.2V 3.3V POWER_ON LVDM (HV) 0V LVDD (LV) 3.3V 0V POWER_OK 3.3V RC16MHz Oscillator 0V 1.2V P0 IDLE 0V 1.2V Internal Reset Generation Module FSM VLVDHV3L 0V VLVDHV3H P1 ~1us Table 19. PAD3V5V field description(1) 1. See the device reference manual for more information on the NVUSRO register. Value(2) 2. '1' is delivery value. It is part of shadow Flash, thus programmable by customer. Description 0 High voltage supply is 5.0 V 1 High voltage supply is 3.3 V |
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