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STE2007 Datasheet(PDF) 17 Page - STMicroelectronics |
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STE2007 Datasheet(HTML) 17 Page - STMicroelectronics |
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17 / 62 page  STE2007 Interface 17/62 Figure 6. 3-lines SPI Data transfer break condition 4.1.1.2 Data/command transfer pause It is possible while transferring Frame Memory Data, Commands or Command Parameters to insert a pause in the data transmission (!CS Line HIGH after 8 Bits Received). When !CS is forced high after a whole byte received, the received byte is processed. Then STE2007 is forced in a wait state ready to restart processing incoming data from the point where the communication has been paused If a new command identifier is transferred after a pause condition the previous communication session is definitively closed. Four are the possible conditions: – Command-Pause-Command – Command-Pause-Parameter – Parameter-Pause-Command – Parameter-Pause-Parameter Figure 7. 3-lines SPI data transfer pause LR0204 D7 D6 D5 D4 D3 D7 D6 D5 D4 !CS SDA SCL COMMAND/PARAMETER COMMAND/PARAMETER Break D/!C LR0203 D3 D2 D1 D0 D7 D6 D5 D4 D3 !CS SDA SCL COMMAND/PARAMETER COMMAND/PARAMETER Pause D2 D1 D0 D/!C |
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