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TTP259-ASFN 数据表(PDF) 47 Page - Tontek Design Technology |
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TTP259-ASFN 数据表(HTML) 47 Page - Tontek Design Technology |
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47 / 81 page ![]() Preliminary TTP259 TonTouch TM 2015/05/25 Page 47 of 81 Ver: 1.1 2) Fast read mode Master read data fast in fast read mode, to reduce CPU process time. Follow shows a flowchart of IIC device program state machine in fast read mode. When master read the first data, IIC device automatically load next data to the sent buffer and generates an interrupt allows users to update new IICRDAT(L/H)0 and IICRDAT(L/H)1 data. 1. For two byte data: WRITE IICRDAT(L/H)0 and IICRDAT(L/H)1 SET IICMOD=1 SET ADR[0..2] SET IICEN=1 IIC INITIAL RTS CHECK MBB=0 WRITE IICRDAT(L/H)0~1 (TWO BYTE NEW DATA) NO YES NEW DATA UPDTAE RTS |
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