/*******************************************************************************
* 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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* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
* Renesas reserves the right, without notice, to make changes to this software
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* you agree to the additional terms and conditions found by accessing the
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* (c) 2014 Renesas Electronics Corporation All rights reserved.
*******************************************************************************/


/******************************************************************************
* File Name     : r_taub.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 TAUB.
* 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
******************************************************************************/
//#define         USE_TABLE_REFERENCE_METHOD


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


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


/******************************************************************************
* Function Name : void R_TAUB_Init( void )
* Description   : This function initialize TAUB (ch.0).
* Argument      : none
* Return Value  : none
******************************************************************************/
void R_TAUB_Init( void )
{

    /* Set the interrupt flags */
    MKTAUB0I0              = 1U;
    RFTAUB0I0              = 0U;
#ifdef USE_TABLE_REFERENCE_METHOD
    TBTAUB0I0              = 1U;
#else
    TBTAUB0I0              = 0U;
#endif

    /* Specifies the CK3 , CK2 CK1 and CK0 clock
    TAUBnTPS   - TAUBn Prescaler Clock Select Register
    b15:b12      TAUBnPRS3 - Specifies the CK3 clock - PCLK / 8
    b11:b 8      TAUBnPRS2 - Specifies the CK2 clock - PCLK / 8
    b 7:b 4      TAUBnPRS1 - Specifies the CK1 clock - PCLK / 8
    b 3:b 0      TAUBnPRS0 - Specifies the CK0 clock - PCLK / 8 */
    TAUB0.TPS              = 0x3333U;              /* PCLK(40MHz) / 8 -> 5MHz      */


    /* Data register for the capture/compare value
    TAUBnCDRm  - TAUBn Channel Data Register
    b15:b 0      TAUBnCDR  - 1ms */
    TAUB0.CDR0             = 5000U - 1U;           /* INTTAUBnIm cycle = count clock cycle * (TAUBnCDRm + 1) */


    /* Controls channel m operation
    TAUBnCMORm - TAUBn Channel Mode OS Register
    b15:b14      TAUBnCKS  - Selects the operation clock                      - Selected Operation CK0
    b13                    - Reserved set to 0
    b12          TAUBnCCS0 - Selects the count clock for TAUBnCNTm counter    - Must be set to 0
    b11          TAUBnMAS  - Specifies the channel as master or slave channel
                             during synchronous channel operation             - Must be set to 0
    b10:b 8      TAUBnSTS  - Selects the external start trigger               - Must be set to 000'b
    b 7:b 6      TAUBnCOS  - Specifies when the capture register TAUBnCDRm
                             and the overflow flag TAUBnCSRm.TAUBnOVF of
                             channel m are updated.                           - Must be set to 00'b
    b 5                    - Reserved set to 0
    b 4:b 1      TAUBnMD   - Specifies the operation mode. For details, refer
                             to the settings for individual functions.        - Must be set to 000'b
    b 0          TAUBnMD0  - Specifies whether INTTAUBnIm is output at the
                             beginning of count operation (when a start
                             trigger is entered) or not.                      - INTTAUBnIm is not output */
    TAUB0.CMOR0            = 0x0000U;


    /* Specifies the type of valid edge detection used for the TAUBTTINm input.
    TAUBnCMURm - TAUBn Channel Mode User Register
    b 7:b 2                - Reserved set to 0
    b 1:b 0      TAUBnTIS  - Specifies the valid edge of the TAUBTTINm input. - Must be set to 00'b */
    TAUB0.CMUR0            = 0x00U;


    /* The simultaneous rewrite registers (TAUBnTOM, TAUBnTOC, TAUBnTOL, TAUBnTDE and TAUBnTDL)
       cannot be used with the Interval Timer Function. Therefore, these registers must be set to 0. */
    TAUB0.TOM              &= 0xFFFEU;
    TAUB0.TOC              &= 0xFFFEU;
    TAUB0.TOL              &= 0xFFFEU;
    TAUB0.TDE              &= 0xFFFEU;
    TAUB0.TDL              &= 0xFFFEU;


    /* Enables and disables independent channel output mode controlled by software.
    TAUBnTOE   - TAUBn Channel Output Enable Register
    b15:b 0      TAUBnTOEm - Enables/disables independent channel output mode.- Disables independent channel 0 output mode. */
    TAUB0.TOE              &= 0xFFFEU;


    /* The simultaneous rewrite registers (TAUBnRDE, TAUBnRDS, TAUBnRDM, and TAUBnRDC)
       cannot be used with the Interval Timer Function. Therefore, these registers must be set to 0. */
    TAUB0.RDE              &= 0xFFFEU;
    TAUB0.RDS              &= 0xFFFEU;
    TAUB0.RDM              &= 0xFFFEU;
    TAUB0.RDC              &= 0xFFFEU;


    MKTAUB0I0              = 0U;                   /* Enable INTTAUB0I0 interrupt */
}


/******************************************************************************
* Function Name : void R_TAUB_Start( void )
* Description   : This function starts TAUB (ch.0).
* Argument      : none
* Return Value  : none
******************************************************************************/
void R_TAUB_Start( void )
{
    /* Enables the counter for each channel
    TAUBnTS    - TAUBn Channel Start Trigger Register
    b15:b 0      TAUBnTSm  - Enables the counter for channel m.   - Enables the ch.0 counter   */
    TAUB0.TS               = 0x0001U;
}