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TUSB8043RGCT 데이터시트(PDF) 15 Page - Texas Instruments

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부품명 TUSB8043RGCT
상세설명  Four-Port USB 3.1 Gen1 Hub
PDF  59 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

TUSB8043RGCT 데이터시트(HTML) 15 Page - Texas Instruments

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TUSB8043
www.ti.com
SLLSEW4 – JUNE 2017
Product Folder Links: TUSB8043
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
8.3.2
USB Power Management
The TUSB8043 can be configured for power switched applications using either per-port (Full power managed) or
ganged power-enable controls and over-current status inputs. When battery charge is enabled, the TUSB8043
will always function in full power managed.
Power switch support is enabled by REG_5h (fullPwrMgmtz) and the per-port or ganged mode is configured by
REG_5h(ganged).
The TUSB8043 supports both active high and active low power-enable controls. The PWRCTL[4:1] polarity is
configured by REG_Ah(pwrctlPol).
8.3.3 I2C Programming Support Using Internal Hid to I2C Interface
The TUSB8043 I2C programming mode is supported using class-specific requests through the HID interface. The
HID's embedded port will be numbered 1 greater than the highest numbered exposed port. The internal HID to
I2C function of the TUSB8043 does not have an interrupt OUT endpoint. The TUSB8043 supports GET REPORT
(Input) through the HID interrupt and control endpoints. The GET REPORT (Feature) and SET REPORT (Output)
occurs through the control endpoint.
Table 3. HID Requests I2C Programming Support
COMMAND
bmRequestType
bRequest
wValue
wIndex
wLength
DATA
Setup field Offset
Offset = 0
Offset = 1
Offset = 2
Offset = 4
Offset = 6
N/A
GET REPORT
A1H
01H
0100H – input
0300H - feature
0000H
Report Length
Report
SET REPORT
21H
09H
0200H – output
0000H
Report Length
Report
Other HID class specific requests are optional and not supported (SET IDLE, SET PROTOCOL, GET IDLE, GET
PROTOCOL) . Also report IDs are not required since all requests are not interleaved.



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