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AT83C5136-RDTUL 数据表(PDF) 92 Page - ATMEL Corporation |
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AT83C5136-RDTUL 数据表(HTML) 92 Page - ATMEL Corporation |
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92 / 171 page  92 AT83C5134/35/36 7683B–USB–03/07 Table 73. Status in Master Transmitter Mode Status Code SSSTA Status of the Two- wire Bus and Two- wire Hardware Application software response Next Action Taken by Two-wire Hardware To/From SSDAT To SSCON SSSTA SSSTO SSI SSAA 08h A START condition has been transmitted Write SLA+W X 0 0 X SLA+W will be transmitted. 10h A repeated START condition has been transmitted Write SLA+W Write SLA+R X X 0 0 0 0 X X SLA+W will be transmitted. SLA+R will be transmitted. Logic will switch to master receiver mode 18h SLA+W has been transmitted; ACK has been received Write data byte No SSDAT action No SSDAT action No SSDAT action 0 1 0 1 0 0 1 1 0 0 0 0 X X X X Data byte will be transmitted. Repeated START will be transmitted. STOP condition will be transmitted and SSSTO flag will be reset. STOP condition followed by a START condition will be transmitted and SSSTO flag will be reset. 20h SLA+W has been transmitted; NOT ACK has been received Write data byte No SSDAT action No SSDAT action No SSDAT action 0 1 0 1 0 0 1 1 0 0 0 0 X X X X Data byte will be transmitted. Repeated START will be transmitted. STOP condition will be transmitted and SSSTO flag will be reset. STOP condition followed by a START condition will be transmitted and SSSTO flag will be reset. 28h Data byte has been transmitted; ACK has been received Write data byte No SSDAT action No SSDAT action No SSDAT action 0 1 0 1 0 0 1 1 0 0 0 0 X X X X Data byte will be transmitted. Repeated START will be transmitted. STOP condition will be transmitted and SSSTO flag will be reset. STOP condition followed by a START condition will be transmitted and SSSTO flag will be reset. 30h Data byte has been transmitted; NOT ACK has been received Write data byte No SSDAT action No SSDAT action No SSDAT action 0 1 0 1 0 0 1 1 0 0 0 0 X X X X Data byte will be transmitted. Repeated START will be transmitted. STOP condition will be transmitted and SSSTO flag will be reset. STOP condition followed by a START condition will be transmitted and SSSTO flag will be reset. 38h Arbitration lost in SLA+W or data bytes No SSDAT action No SSDAT action 0 1 0 0 0 0 X X Two-wire bus will be released and not addressed slave mode will be entered. A START condition will be transmitted when the bus becomes free. |
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