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STWBC2-HP bảng dữ liệu(PDF) 44 Page - STMicroelectronics

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STWBC2-HP bảng dữ liệu(HTML) 44 Page - STMicroelectronics

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2.2.6.4.2
I/O signal
1.
Disabling the pattern generator by setting the LED_BUZZER_<x>_CFG[5] enable bit.
2.
Direct controls of the I/O signal through the LED_BUZZER_<x>_IO[1:0] register bits.
2.2.6.5
Configuration register overview
Table 33 shows the list of LED configuration registers overview:
Table 33. LED configuration registers overview
Registers overview
Name
Description
Type
Page
Offset
Reset val.
LED_BUZZER_1_CFG
Led/Buzzer driver configuration
R/W
0
0x22
0x00
LED_BUZZER_1_IO
Led/Buzzer I/O State
R/W
0
0x23
0x0Y(1)
LED_BUZZER_1_PATTERN_L
Low byte of pattern
R/W
0
0x24
0x00
LED_BUZZER_1_PATTERN_H
High byte of pattern
R/W
0
0x25
0x00
LED_BUZZER_1_CLK_DIV
Clock division
R/W
0
0x26
0x00
LED_BUZZER_2_CFG
Led/Buzzer driver configuration
R/W
0
0x27
0x00
LED_BUZZER_2_IO
Led/Buzzer I/O State
R/W
0
0x28
0x0Y(1)
LED_BUZZER_2_PATTERN_L
Low byte of pattern
R/W
0
0x29
0x00
LED_BUZZER_2_PATTERN_H
High byte of pattern
R/W
0
0x2A
0x00
LED_BUZZER_2_CLK_DIV
Clock division
R/W
0
0x2B
0x00
1. Refer to register definition.
2.2.7
BB-DCDC
2.2.7.1
Overview
The BB-DCDC is a digital controller for buck, boost, buck-boost DC to DC conversion.
2.2.7.2
Feature list
•
Synchronous clocked machine
•
Uses only comparators as analog resources
•
Configurable as boost, buck or buck-boost
•
Run burst, DCM, QR and CCM conversion modes
•
Detects overload
•
Can regulate VIN drop
•
Can limit output current
2.2.7.3
Functional description
Here below is shown the group of signals handled by the BB-DCDC.
STWBC2-HP
Digital AFE functions
DS13825 - Rev 1.0
page 44/96



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