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S2R72A21
Epson S2R72A21 Manuals
Manuals and User Guides for Epson S2R72A21. We have
1
Epson S2R72A21 manual available for free PDF download: Application Note
Epson S2R72A21 Application Note (34 pages)
Brand:
Epson
| Category:
Computer Hardware
| Size: 0.87 MB
Table of Contents
Table of Contents
3
Description
5
Terms & Abbreviations
6
Operation
7
Description
7
Basic System Structure
7
Basic Operation
9
Operation Waveform
9
Each Operation
10
HS Transmission Current Control
13
Connection Example
14
Connection Ex. Host Soc (on the same Board)/Int Port, Portable Device/Ext Port
14
Connection Ex. Host Soc (on the Separate Board)/Int Port, Portable Device/Ext Port
15
Connection Ex. Host Soc (on the Separate Board)/Ext Port, Portable Device/Int Port
15
Operation Within each Connection Example
16
Connection Ex. Host Soc (on the same Board)/Int Port, Portable Device/Ext Port
17
ADJ Settings
17
BC Control
17
Role Switch Control
17
Method to Detect Disconnection of Portable Device
17
Connection Ex. Host Soc (on the Separate Board)/Int Port, Portable Device/Ext Port
19
ADJ Settings
19
BC Control
19
Role Switch Control
19
Method to Detect Disconnection of Portable Device
19
Connection Ex. Host Soc (on the Separate Board)/Ext Port, Portable Device/Int Port
21
ADJ Settings
21
BC Control
21
Role Switch Control
21
Method to Detect Disconnection of Portable Device
21
USB Compliance Test
23
S2R72A21 Function Aimed at USB Compliance Test
23
General Test Method
23
High-Speed Signal Quality
23
Test J / K
24
Test Method with Evaluation Board
24
Test Environment
24
Test Procedure
25
Cautions for each Test
27
El_22
27
Full-Speed Signal Quality
27
Compliance Test for Host Systems with S2R72A21
27
Contact Window Regarding Compliance Test
28
PCB Design Guide
29
Power Supply and Reset
29
DP/DM Signal Line
29
Circuit Board Wiring
29
Additional Component
29
Oscillator Circuit
31
Others Precautions
31
Revision History
33
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