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====== MIOS Pin List ======

This list gives you an oversight over the pin usage of MIOS. 
^  Name  ^  Class  ^  Core Port:Pin      ^  PIC Pin #  ^  Direction  ^   Additional Information   |
|  RA0   |   A   |    J5:A0  |  2  |  Input  | analog pin|
|  RA1   |   A   |    J5:A1  |  3  |  Input  | analog pin|
|  RA2   |   A   |    J5:A2  |  4  |  Input  | analog pin|
|  RA3   |   A   |    J5:A3  |  5  |  Input  | analog pin|
|  RA5   |   A   |    J5:A4  |  7  |  Input  | analog pin|
|  RE0   |   A   |    J5:A5  |  8  |  Input  | analog pin|
|  RE1   |   A   |    J5:A6  |  9  |  Input  | analog pin|
|  RE2   |   A   |    J5:A7  |  10  |  Input  | analog pin|
|  RA4   |   K   |    J4:SD  |  6  |  Input / Output   | IIC data pin SD, external 1k pull-up, can be used by an application for other purposes so long MIOS_IIC_* won't be called|
|  RC0   |   B   |   J6:RC / J7:RC  |  15  |  Output   | used to address the AIN multiplexers or the MF module. In both cases driven by an interrupt service routine. |
|  RC1   |   B   |   J6:SC / J7:SC  |  16  |  Output   | used to address the AIN multiplexers or the MF module. In both cases driven by an interrupt service routine. |
|  RC2   |   D   |    J7:SO  |  18  |  Output   | used as serial output to the MF module, driven by an interrupt service routine. |
|  RC3   |   C   |    J6:SI / J10:PWM  |  17  |  Output   | used to address the AIN multiplexers, driven by an interrupt service routine / SID PWM. This pin is stuffed with an external 10k pull-up which could be useful for an application which uses this pin as input|
|  RD0   |   E   |    J8:SO  |  19  |  Output   | serial output to the DOUT chain, driven by an interrupt service routine if MIOS_SRIO active|
|  RD1   |   E   |    J9:SI  |  20  |  Input  | serial input to the DIN chain, used by an interrupt service routine if MIOS_SRIO active|
|  RD2   |   F   |   J8:RC / J9:RC  |  21  |  Output   | serial latch output, used by an interrupt service routine if MIOS_SRIO active|
|  RD3   |   F   |   J8:SC / J9:SC / J10:SC  |  22  |  Output   | serial clock output, used by an interrupt service routine if MIOS_SRIO active / SID SC|
|  RC4   |   G   |   J10:RC  |  23  |  Output   | SID RC / free for applications without restrictions if second CLCD not used|
|  RC5   |   G   |   J10:SO  |  24  |  Output   | SID SO / free for applications without restrictions|
|  RD4   |   E   |   J14  |  27  |  Output   | touch sensor strobe signal, used by an interrupt service routine if MIOS_SRIO active and TS_Sensitivity > 0|
|  RD5   |   H   |   J4:SC / J10:MD / J15:RS  |  28  |  Output   | clock output to IIC / SID MD / address signal to LCD |
|  RD6   |   H   |   J10:MU / J15:RW  |  29  |  Output   | SID MU / RW signal to LCD|
|  RD7   |   I   |   J15:E   |  30  |  Output   | enable signal to LCD (exclusive!)|
|  RB0   |   J   |   J15:D0  |  33  |  Input / Output   | LCD data line #0|
|  RB1   |   J   |   J15:D1  |  34  |  Input / Output   | LCD data line #1|
|  RB2   |   J   |   J15:D2  |  35  |  Input / Output   | LCD data line #2 / CAN Tx|
|  RB3   |   J   |   J15:D3  |  36  |  Input / Output   | LCD data line #3 / CAN Rx|
|  RB4   |   J   |   J15:D4  |  37  |  Input / Output   | LCD data line #4|
|  RB5   |   J   |   J15:D5  |  38  |  Input / Output   | LCD data line #5|
|  RB6   |   J   |   J15:D6  |  39  |  Input / Output   | LCD data line #6|
|  RB7   |   J   |   J15:D7  |  40  |  Input / Output   | LCD data line #7|

The pins are divided into following classes:

  * Class A: analog inputs, which can be optionally used as digital inputs or outputs like demonstrated in the j5_dout and j5_din example if the MIOS_AIN and MIOS_MF driver are not used

  * Class B: digital pin which is free for applications if neither the MIOS_AIN multiplex driver, nor the MIOS_MF driver is active Also free if MIOS_AIN doesn't run in mux mode

  * Class C: digital pin which is free for applications if the  MIOS_AIN multiplex driver isn't active

  * Class D: digital pin which is free for applications if the MIOS_MF driver isn't active

  * Class E: digital pin which is free for an application if the MIOS_SRIO driver isn't active. Can also be shared with other devices if the application accesses the pin from an interrupt service routine or if it disables all interrupts for a short time (< 300 uS!). Touchsensor Pin.

  * Class F: digital pin which is free for an application if the MIOS_SRIO driver isn't active.

  * Class G: free pin which can be used by the application without any restrictions

  * Class H: digital pin which can be shared with other modules (LCD/IIC/...) Shouldn't be used from an interrupt service routine

  * Class I: digital pin, exclusive for LCD

  * Class J: digital IO pin, can be shared with the LCD data lines as IO pins so long J15:E is low (means: MIOS doesn't execute a MIOS_LCD function) Shouldn't be used from an interrupt service routine

  * Class K: see description


See also the [[http://www.ucapps.de/mbhp/mbhp_core_v3.pdf|schematic of the MBHP_CORE]] module as reference, or this PCB layout:

{{http://www.ucapps.de/mbhp/mbhp_core_v3.gif}}
   
This table is based on the original from [[http://www.ucapps.de/mios/mios_pin_list.txt|mios_pin_list.txt]]
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