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====== Master Control Port Boot time I/O (ADAU145x) ======

[[resources:tools-software:sigmastudio:toolbox:mastercontrolport|Click here to return to the Master Control Port  page]]\\


The master control port I/O block allows communication with one external device during DSP program initialization.  Typically this block is used to configure an external device like a converter or codec.   Communication (read or write) over the master control port bus (I2C or SPI) occurs only once at start-up of the DSP program, and prior to audio processing. The data transferred between host and device is defined in a SigmaStudio sequence file which can be generated using the [[resources:tools-software:sigmastudio:developmentenvironment:workspacewindows|SigmaStudio sequence window]]. \\
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{{ :resources:tools-software:sigmastudio:toolbox:mastercontrolport:mcpbootup.png?nolink |}}

===== Configuration =====
Click on {{:resources:tools-software:sigmastudio:toolbox:mastercontrolport:i2c_spi.png?nolink|}} to configure the parameters. 

====I2C configuration====
{{ :resources:tools-software:sigmastudio:toolbox:mastercontrolport:masterbooti2cconfig.png?nolink |}}
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===GUI Control===
^GUI Control Name^Default Value^Range^Function Description^
|Bitrate|400 kHz| 20 kHZ - 400 kHZ|I2C Speed|
|Device Address|0|0 – 127|I2C Slave Device Address|
|Sub-Address Bytes|2|1-4| Length of the sub address|
|Sequence file|-|-|Device write/read sequence to execute at boot time.This file can be defined and saved from [[resources:tools-software:sigmastudio:developmentenvironment:workspacewindows|SigmaStudio's sequence window]].|
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====SPI configuration====
{{ :resources:tools-software:sigmastudio:toolbox:mastercontrolport:masterbootspiconfig.png?nolink |}}
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===GUI Control===
^GUI Control Name^Default Value^Range^Function Description^
|Bitrate|100 kHz| 100 kHZ - 100000 kHZ|SPI Speed|
|SS_M Pin|0|0 |SPI Slave Select Channel|
|MP Slave Select Channel|Disabled(enabled by click on radio button)|0 - 7| SPI Slave Select Channel|
|Sub-Address Bytes|2|1-4| Length of the sub address|
|Command Length|1|1-4| Length of the command sent in bytes|
|Write Instruction|0|0-255|Instruction value for a write operation (0x0 for ADI audio devices, typically 0x2 for eeprom/flash)|
|Write-Enable instruction|6|0 - 255|Instruction value for device write-enable operation (ignored for Master Control Port I/O Boot)|
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===== Support for Multiple Slaves =====
Multiple external devices can be configured by creating multiple instances of the master control port boot time IO module and selecting appropriate slave select in the configuration parameters.
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The sequence of booting up of different slaves can be configured by using the drop down list next to the {{:resources:tools-software:sigmastudio:toolbox:mastercontrolport:i2c_spi.png?nolink|}} image as shown below
{{ :resources:tools-software:sigmastudio:toolbox:mastercontrolport:multiinst_mcp.png?nolink |}}

===== Support for Different SPI Slave Select Pins =====
If the device to be programmed is selected through MP0 (the /SS_M pin), no configuration is required in the register controls. Otherwise, the multipurpose pin must be configured to act as the slave select in the Register Window. (Hardware Configuration -> ICx - ADAU145x Register Controls -> MULTIPURPOSE/AUXADC)

{{ :resources:tools-software:sigmastudio:toolbox:basicdsp:mp5_slaveselect.jpg?nolink |}}
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  - Slave Select Channel -> 'Slave Select Channel x'
  - MPx pin mode -> 'Slave Select for Master SPI port'
  - MPx pin function -> 'Multipurpose function'
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The following table shows the mapping between module's parameter and the register control window. 
Please note that for some other blocks, there is an offset of 1 between the module parameter and the register control window.
^ 'Slave Select' in Configuration Window ^'Slave Select Channel' in the Register control^
|     0    |    Slave Select Channel 0    | 
|     1    |    Slave Select Channel 1    | 
|     2    |    Slave Select Channel 2    | 
|     3    |    Slave Select Channel 3    | 
|     4    |    Slave Select Channel 4    | 
|     5    |    Slave Select Channel 5    | 
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===== Creating Sequence File for SPI/I2C slave not supported by SigmaStudio =====
Use the following file and edit for your slave. 
<file xml ADAU1361.xml>
<?xml version="1.0" standalone="no"?>
<ROM IC="ADAU1361" IC_Address="112" Address_byte_length="2">
  <dateTime>2017-03-16T05:12:14.2859851Z</dateTime>
  <version>3.14.1.1593</version>
  <page modetype="Mode 0">
    <action instr="writeXbytes" len="3" addr="16384" ParamName="Reg1" DspName="IC 1">0F</action>
    <action instr="writeXbytes" len="8" addr="16386" ParamName="Reg2" DspName="IC 1">00 FD 00 0C 20 01</action>
    <action instr="delay" ParamName="IC 1.Delay" DspName="IC 1">00 64</action>
    <action instr="writeXbytes" len="3" addr="16405" ParamName="IC 1.Serial Port Control Registers.Serial Port Control 0" DspName="IC 1">00</action>
  </page>
</ROM>
</file>

Please follow the steps below to edit the XML for your Slave.
    * Edit IC, IC_Address and Address_byte_length fields in xml. Please note that IC_Address should be an 8-bit I2C address in decimal format. Address_byte_length refers to the length, in bytes, of the external IC's address space.
<code xml>
<ROM IC="ADAU1361" IC_Address="112" Address_byte_length="2">
</code>
    * Add your register writes as shown below. 
<code xml>
<action instr="writeXbytes" len="8" addr="16386" ParamName="Reg2" DspName="IC 1">00 FD 00 0C 20 01</action>

</code>
  Please match all the fields as follows. 
        instr => "writeXBytes" 
        len => Data Length in bytes+ Address_byte_length
        addr => Register Address in decimal (not hexadecimal)
        Then the value part should have the register values in Hexadecimal. A space should separate each data as shown in the example.   In this example len => 6 (data length)  + 2 (Address_byte_length) = 8
 
    * You can add delays as shown below. 
<code xml>
<action instr="delay" ParamName="IC 1.Delay" DspName="IC 1">00 64</action>
</code>
Delay is in milliseconds (Hexadecimal Format)
 
===== Supported ICs =====
  - ADAU145x
  - ADAU1467
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