| 1 | ///////////////////////////////////////////////////////////////////// |
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| 2 | //// //// |
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| 3 | //// WISHBONE rev.B2 compliant I2C Master controller defines //// |
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| 4 | //// //// |
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| 5 | //// //// |
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| 6 | //// Author: Richard Herveille //// |
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| 7 | //// richard@asics.ws //// |
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| 8 | //// www.asics.ws //// |
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| 9 | //// //// |
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| 10 | //// Downloaded from: http://www.opencores.org/projects/i2c/ //// |
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| 11 | //// //// |
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| 12 | ///////////////////////////////////////////////////////////////////// |
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| 13 | //// //// |
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| 14 | //// Copyright (C) 2001 Richard Herveille //// |
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| 15 | //// richard@asics.ws //// |
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| 16 | //// //// |
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| 17 | //// This source file may be used and distributed without //// |
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| 18 | //// restriction provided that this copyright statement is not //// |
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| 19 | //// removed from the file and that any derivative work contains //// |
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| 20 | //// the original copyright notice and the associated disclaimer.//// |
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| 21 | //// //// |
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| 22 | //// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY //// |
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| 23 | //// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED //// |
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| 24 | //// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS //// |
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| 25 | //// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR //// |
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| 26 | //// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, //// |
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| 27 | //// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES //// |
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| 28 | //// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE //// |
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| 29 | //// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR //// |
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| 30 | //// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF //// |
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| 31 | //// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT //// |
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| 32 | //// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT //// |
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| 33 | //// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE //// |
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| 34 | //// POSSIBILITY OF SUCH DAMAGE. //// |
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| 35 | //// //// |
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| 36 | ///////////////////////////////////////////////////////////////////// |
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| 37 | |
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| 38 | // CVS Log |
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| 39 | // |
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| 40 | // $Id: i2c_master_defines.v,v 1.3 2001-11-05 11:59:25 rherveille Exp $ |
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| 41 | // |
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| 42 | // $Date: 2001-11-05 11:59:25 $ |
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| 43 | // $Revision: 1.3 $ |
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| 44 | // $Author: rherveille $ |
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| 45 | // $Locker: $ |
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| 46 | // $State: Exp $ |
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| 47 | // |
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| 48 | // Change History: |
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| 49 | // $Log: not supported by cvs2svn $ |
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| 50 | |
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| 51 | |
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| 52 | // I2C registers wishbone addresses |
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| 53 | |
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| 54 | // bitcontroller states |
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| 55 | `define I2C_CMD_NOP 4'b0000 |
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| 56 | `define I2C_CMD_START 4'b0001 |
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| 57 | `define I2C_CMD_STOP 4'b0010 |
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| 58 | `define I2C_CMD_WRITE 4'b0100 |
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| 59 | `define I2C_CMD_READ 4'b1000 |
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