2 ## This file is part of the libsigrokdecode project.
4 ## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
6 ## This program is free software; you can redistribute it and/or modify
7 ## it under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation; either version 2 of the License, or
9 ## (at your option) any later version.
11 ## This program is distributed in the hope that it will be useful,
12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ## GNU General Public License for more details.
16 ## You should have received a copy of the GNU General Public License
17 ## along with this program; if not, write to the Free Software
18 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 The Inter-Integrated Circuit (I2C) bus is a bidirectional, multi-master
25 bus using two signals (SCL = serial clock line, SDA = serial data line).
27 Protocol output format:
33 - 'START' (START condition)
34 - 'START REPEAT' (Repeated START condition)
35 - 'ADDRESS READ' (Slave address, read)
36 - 'ADDRESS WRITE' (Slave address, write)
37 - 'DATA READ' (Data, read)
38 - 'DATA WRITE' (Data, write)
39 - 'STOP' (STOP condition)
43 <data> is the data or address byte associated with the 'ADDRESS*' and 'DATA*'
44 command. Slave addresses do not include bit 0 (the READ/WRITE indication bit).
45 For example, a slave address field could be 0x51 (instead of 0xa2).
46 For 'START', 'START REPEAT', 'STOP', 'ACK', and 'NACK' <data> is None.