/*******************************************************************************
* DISCLAIMER
* This software is supplied by Renesas Electronics Corporation and is only
* intended for use with Renesas products. No other uses are authorized. This
* software is owned by Renesas Electronics Corporation and is protected under
* all applicable laws, including copyright laws.
* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
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* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
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* (c) 2014 Renesas Electronics Corporation All rights reserved.
*******************************************************************************/


/******************************************************************************
* File Name     : r_taud_InputPulseInterval.c
* Version       : 1.0
* Device(s)     : R7F701007 RH850/F1L
* Tool-Chain    : IAR Embedded Workbench 1.30.1
* Description   : This file is a sample of the input pulse interval (TAUD).
* Operation     : -
*******************************************************************************
*******************************************************************************
* History       : DD.MM.YYYY Version Description
*               : 20.03.2014 1.00    First Release
******************************************************************************/

/******************************************************************************
Includes <System Includes>
******************************************************************************/
#include    "r_typedefs.h"
#include    "iodefine.h"
#ifdef __ghs__
#include    "device.h"
#endif

#ifdef __IAR_SYSTEMS_ICC__
	#include <intrinsics.h>
#endif




/******************************************************************************
Imported global variables and functions (from other files)
******************************************************************************/


/******************************************************************************
Macro definitions
******************************************************************************/


/******************************************************************************
Exported global variables and functions (to be accessed by other files)
******************************************************************************/
        void    R_TAUD_Init( void );
        void    R_TAUD_Start( void );


/******************************************************************************
Private global variables and functions
******************************************************************************/


/******************************************************************************
* Function Name : void R_TAUD_Init( void )
* Description   : This function initializes the TAUD ch.7. (Input capture function)
* Argument      : none
* Return Value  : none
******************************************************************************/
void R_TAUD_Init( void )
{
    /* TAUD0.7 port settings */
    /* TAUD0I7(P10_3):CN2A-23pin */
    PFCAE10                &= 0xFFF7U;
    PFCE10                 &= 0xFFF7U;
    PFC10                  &= 0xFFF7U;
    PM10                   |= 0x0008U;
    PMC10                  |= 0x0008U;
    DNFATAUD0ICTL          = 0x00U;
    DNFATAUD0IEN           |= 0x0080U;


    /* Set interrupt flags */
    MKTAUD0I7              = 1U;
    RFTAUD0I7              = 0U;
    TBTAUD0I7              = 0U;


    /* Specifies the CK3 , CK2 , CK1 and CK0 clock
    TAUDnTPS   - TAUDn Prescaler Clock Select Register
    b15:b12      TAUDnPRS3 - Specifies CK3_PRE clock                      - PCLK / 1
    b11:b 8      TAUDnPRS2 - Specifies CK2_PRE clock                      - PCLK / 1
    b 7:b 4      TAUDnPRS1 - Specifies CK1_PRE clock                      - PCLK / 1
    b 3:b 0      TAUDnPRS0 - Specifies CK0_PRE clock                      - PCLK / 16 */
    TAUD0.TPS              = 0x0004U;            /* PCLK(80MHz) / 16                  */


    /* Controls master channel operation
    TAUDnCMORm - TAUDn Channel Mode OS Register
    b15:b14      TAUDnCKS  - Selects an operation clock.                  - Selected Operation CK0
    b13:b12      TAUDnCCS0 - Selects a count clock for TAUDnCNTm counter. - Set to 00'b
    b11          TAUDnMAS  - Specifies whether the channel is a master
                             channe or slave channel during synchronous
                             channel operation.                           - Set to 0'b
    b10:b 8      TAUDnSTS  - Selects an external start trigger.           - Valid edge of TAUJTTINm input signal,
                                                                            which is specified by
                                                                            TAUJnCMURm.TAUJnTIS[1:0]. Set to 001'b
    b 7:b 6      TAUDnCOS  - Specifies the timing for updating capture
                             register TAUDnCDRm and overflow flag
                             TAUDnCSRm.TAUDnOVF of channel m.             - Updated (cleared or set) when valid edge
                                                                            of TAUJTTINm input is detected.
                                                                            Set to 01'b
    b 5                    - Reserved set to 0
    b 4:b 1      TAUDnMD   - Specifies an operating mode.                 - Capture mode. Set to 0010'b
    b 0          TAUDnMD0  - Specifies whether INTTAUDnIm is generated
                             at the beginning of count operation (when
                             a start trigger is entered) or not.          - INTTAUJnIm is not generated when operation
                                                                            starts. Set to 0'b */
    TAUD0.CMOR7            = 0x0144U;


    /* Specifies the type of valid edge detection used for the TAUDTTINm input.
    TAUDnCMURm - TAUDn Channel Mode User Register
    b 7:b 2                - Reserved set to 0
    b 1:b 0      TAUDnTIS  - Specifies a valid edge of TAUDTTINm input
                             signal.                                      - Rising and falling edge detection.
                                                                            Set to 10'b. */
    TAUD0.CMUR7            = 0x02U;


    /* Disable the channel output mode.
    TAUDnTOE   - TAUDn Channel Output Enable Register
    b15:b 0      TAUDnTOEm - Enables/disables the independent channel
                             output function.                             - Disables the independent timer output
                                                                            function (controlled by software). */
    TAUD0.TOE              &= 0xFF7FU;


    /* The simultaneous rewrite registers (TAUDnRDE, TAUDnRDS, TAUDnRDM, and TAUDnRDC)
       cannot be used with the Interval Timer Function. Therefore, these registers must be set to 0. */
    TAUD0.RDE              &= 0xFF7FU;
    TAUD0.RDS              &= 0xFF7FU;
    TAUD0.RDM              &= 0xFF7FU;
    TAUD0.RDC              &= 0xFF7FU;


    MKTAUD0I7              = 0U;                 /* Enable INTTAUD0I7 interrupt    */
}


/******************************************************************************
* Function Name : void R_TAUD_Start( void )
* Description   : This function start the TAUD (ch.7).
* Argument      : none
* Return Value  : none
******************************************************************************/
void R_TAUD_Start( void )
{
    /* Enables the counter for each channel
    TAUDnTS    - TAUDn Channel Start Trigger Register
    b15:b 0      TAUDnTSm  - Enables the counter operation of channel m.  - Enables the ch.7 counter   */
    TAUD0.TS               = 0x0080U;
}