Cmsemicon SC8F577 Series - Page 6

V1.8
SC8F577x
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18. IIC MODE ........................................................................................................................ 128
18.1 IIC MODE GENERAL ................................................................................................................................................... 128
18.2 IIC RELATED REGISTER .............................................................................................................................................. 129
18.3 MASTER CONTROL MODE ........................................................................................................................................... 132
18.3.1 I
2
C Master Control Mode Support ....................................................................................................................... 132
18.3.1.1 I
2
C Master Control Mode Operation........................................................................................................ 133
18.3.2 Baud Rate Generator .......................................................................................................................................... 134
18.3.3 I
2
C Master Control Mode Transmit ...................................................................................................................... 135
18.3.3.1 BF Status Indication................................................................................................................................ 135
18.3.3.2 WCOL Status Indication ......................................................................................................................... 135
18.3.3.3 ACKSTAT Status Indication .................................................................................................................... 135
18.3.4 I
2
C Master Control Mode Receive ....................................................................................................................... 136
18.3.4.1 BF Status Indication................................................................................................................................ 136
18.3.4.2 WCOL Status Indication ......................................................................................................................... 136
18.3.5 I
2
C Master Control Mode Start Condition Time Series ........................................................................................ 138
18.3.5.1 WCOL Status Indication ......................................................................................................................... 138
18.3.6 I
2
C Master Control Mode Repeat Condition Time Series .................................................................................... 139
18.3.6.1 WCOL Status Indication ......................................................................................................................... 139
18.3.7 ACK Time Series ................................................................................................................................................. 140
18.3.7.1 WCOL Status Indication ......................................................................................................................... 140
18.3.8 Stop Condition..................................................................................................................................................... 141
18.3.8.1 WCOL Status Indication ......................................................................................................................... 141
18.3.9 Clock Arbitration .................................................................................................................................................. 142
18.3.10 Multi Master Mode ............................................................................................................................................... 142
18.3.11 Multi Master Communication, Bus Conflict and Bus Arbitration .......................................................................... 143
18.4 SLAVE MODE ............................................................................................................................................................. 143
18.4.1 Addressing .......................................................................................................................................................... 144
18.4.2 Receiving ............................................................................................................................................................ 144
18.4.3 Transmit .............................................................................................................................................................. 145
18.4.4 I2C Masking Register .......................................................................................................................................... 146
18.5 OPERATION UNDER SLEEP MODE ................................................................................................................................ 146
18.6 EFFECT OF RESET ...................................................................................................................................................... 146
19. TOUCH BUTTON ............................................................................................................ 147
19.1 TOUCH BUTTON MOD GENERAL................................................................................................................................... 147
19.2 TOUCH BUTTON RELATED REGISTER ............................................................................................................................ 148
19.3 APPLICATION FOR TOUCH BUTTON MOD ....................................................................................................................... 151
19.3.1 The process of reading “data of touch button” in query mode ............................................................................. 151
19.3.2 Judge method of key press ................................................................................................................................. 152
19.4 PRECAUTIONS FOR TOUCH BUTTON MOD ..................................................................................................................... 153
20. LOW VOLTAGE DETECTION (LVD) ............................................................................... 154
20.1 LVD MOD GENERAL ................................................................................................................................................... 154
20.2 LVD RELATED REGISTER ............................................................................................................................................ 154
20.3 LVD OPERATION ........................................................................................................................................................ 154
21. ELECTRICAL PARAMETER ........................................................................................... 155
21.1 LIMIT PARAMETER ...................................................................................................................................................... 155
21.2 DC FEATURE ............................................................................................................................................................. 155
21.3 ADC FEATURE ........................................................................................................................................................... 156
21.4 COMP FEATURE ....................................................................................................................................................... 156
21.5 PGA FEATURE ........................................................................................................................................................... 157