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UM0932 Datasheet(PDF) 2 Page - STMicroelectronics

Part # UM0932
Description  system-on-chip
Download  43 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0932 Datasheet(HTML) 2 Page - STMicroelectronics

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Contents
UM0932
2/43
DocID17385 Rev 3
Contents
1
Documentation conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
List of abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
Protocol stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2
ST7580 Power line frames: structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3
Power line data transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4
Power line data reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
ST7580 reception flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3
Host interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1
UART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2
Communication protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.1
Frame types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.2
Local frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.3
Acknowledgment messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.4
Status message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2.5
Local port arbitration rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.6
Frame delimitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.7
Data communication from the ST7580 to the external host . . . . . . . . . . 17
3.2.8
Data communication from external host to the ST7580 . . . . . . . . . . . . . 18
3.2.9
Host interface timeouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3
Command codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.1
BIO_ResetRequest (3Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.3.2
BIO_ResetConfirm (3Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.3.3
BIO_ResetIndication (3Eh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.4
MIB_WriteRequest (08h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3.5
MIB_WriteConfirm (09h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.6
MIB_ReadRequest (0Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3.7
MIB_ReadConfirm (0Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.3.8
MIB_EraseRequest (10h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.3.9
MIB_EraseConfirm (11h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.3.10
PingRequest (2Ch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3.11
PingConfirm (2Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25


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