/***************************************************************************
 * This code and information is provided "as is" without warranty of any   *
 * kind, either expressed or implied, including but not limited to the     *
 * implied warranties of merchantability and/or fitness for a particular   *
 * purpose.                                                                *
 *                                                                         *
 * Copyright (C) 2006 Teridian Semiconductor Corp. All Rights Reserved.    *
 ***************************************************************************/
//**************************************************************************
//  DESCRIPTION: 71M65xx POWER METER - I/O memory mapped SFR definitions.
// 
//  AUTHOR:  MTF
//
//  HISTORY: See end of file
//**************************************************************************
// File: IO65xx.H
//
/* io65xx special functions registers. */

#ifndef IO65XX_H
#define IO65XX_H 1

//  CKTEST is any test input frequency.
//  CK32  is 32768 Hz from XTAL.
//  RTCLK is 32768 Hz from XTAL.
//  CKADC is CK32 x 150 or CKTEST when CK_EN.
//  CKFIR is CKADC delayed.
//  CKCE  is CKADC.
//  CKMPU is derived from CKCE and MPU_DIV.
//  CKEM  is CKMPU x 2.
//  CKLCD is derived from CKADC and LCD_CLK.
//  CK32 drives MUX.

#define IO_BASE 0x2000        // Base of IO SFR RAM.

#if 0 == FIR
#define DEG_SCALE (1275.)
#elif 1 == FIR
#define DEG_SCALE (9585.)
#elif 2 == FIR
#define DEG_SCALE (22721.)
#else
#error unknown FIR length
#endif

#define CE_ENABLE()      CE0 |= CE_EN;  IFLAGS = ~(IE_XFER_ | IE_RTC_)
#define CE_DISABLE()     CE0 &= ~CE_EN
#define CE_BUSY          INT_CE_BUSY
#define CE_ACTIVE        (CE0 & CE_EN)

/***************************************************************************
 * History:
 * $Log: io65xx.h,v $
 * Revision 1.1  2006/03/02 01:46:54  Michael T. Fischer
 * First cut at 6530 includes.
 *

 *
 * Copyright (C) 2006 Teridian Semiconductor Corp. All Rights Reserved.    *
 * this program is fully protected by the United States copyright          *
 * laws and is the property of Teridian Semiconductor Corporation.         *
 ***************************************************************************/
#endif  /* io65xx.h */