• Learning center

    Index/
    120. Deep sleep standby conditions
    In the video, we're going to talk about deep sleep standby conditions.
    33 person
    Collection
    Detail
    Comments

    1

    00:00:00,566 --> 00:00:05,033

    Hello everyone, today we're going to talk about deep sleep standby conditions

    2

    00:00:08,466 --> 00:00:14,133

    In the last video, we talked about the four major working conditions of RTC circuit

    3

    00:00:16,100 --> 00:00:20,700

    In this video, we are going to talk about the deep sleep standby conditions

    4

    00:00:22,733 --> 00:00:29,466

    In the deep sleep state, there are 7 conditions, including deep sleep standby power supply,

    5

    00:00:30,700 --> 00:00:36,633

    VCCDSW_3P3, and the voltage value is 3.3V

    6

    00:00:40,933 --> 00:00:46,600

    Deep sleep standby voltage good signal, DSW_PWROK

    7

    00:00:49,500 --> 00:00:53,133

    Low battery power indicator, BATLOW#

    8

    00:00:55,366 --> 00:00:59,966

    This BATLOW#, which is not shown in the standard timing diagram,

    9

    00:01:01,900 --> 00:01:05,100

    it's also a condition for deep sleep standby

    10

    00:01:09,633 --> 00:01:15,733

    In addition to these three conditions, it also includes four RTC circuit conditions

    11

    00:01:18,933 --> 00:01:22,833

    These are what we call the seven conditions of deep sleep

    12

    00:01:23,533 --> 00:01:25,033

    In the actual circuit,

    13

    00:01:25,600 --> 00:01:33,766

    this BATLOW# signal is usually powered by deep sleep standby through a resistor pull up, or from the EC

    14

    00:01:37,000 --> 00:01:42,400

    This deep sleep standby power supply is usually output by PWM power supply

    15

    00:01:44,400 --> 00:01:50,900

    When the PWM output is normal, the standby power supply chip will generate a good power signal

    16

    00:01:57,166 --> 00:02:05,933

    and send it to the PCH DSW_PWROK pin to inform the PCH that the deep sleep standby power supply is normal

    17

    00:02:08,966 --> 00:02:11,500

    Some machines do not support deep sleep

    18

    00:02:12,766 --> 00:02:15,000

    When deep sleep is not supported,

    19

    00:02:15,200 --> 00:02:20,233

    the deep sleep standby power supply is connected to the main power supply behind it

    20

    00:02:21,700 --> 00:02:27,300

    The deep sleep standby power good signal will also be linked to RSMRST# signal

    21

    00:02:33,866 --> 00:02:37,100

    Okay, so that's the condition for deep sleep standby

    No comments yet
    Come and write your comments
    Related recommendations
    1/1
    Video
    115. BIOS structure introduction
    ¥0.00
    38 people are learning
    Series of lessons
    LCD backlight screen circuit maintenance
    ¥0.00
    33 people are learning
    Video
    167. Intel 6th~9th Power supplies generation seque
    ¥0.00
    40 people are learning
    Video
    354. I2S bus from baseband to CPU of iPhone 12 12 Pro
    ¥0.00
    37 people are learning
    Video
    192. Network card introduction
    ¥0.00
    82 people are learning
    Next lesson
    Video
    Xinzhizao Download and Install Redemption Code Instructions
    0 people are learning
    Links：