I believe I got all the registers I needed to set. I have the RTC on pins D6 and D7 (Both set to output):
SDA VAR Portd.6 ' RTC I2C serial clock line
SCL VAR Portd.7 ' RTC I2C serial data line
TRISD=%00000010

'MPASM CONFIG
@ __config _CONFIG1H, _FOSC_INTIO67_1H & _FCMEN_OFF_1H & _PRICLKEN_ON_1H & _IESO_OFF_1H
@ __config _CONFIG2L, _PWRTEN_OFF_2L & _BOREN_OFF_2L & _BORV_285_2L
@ __config _CONFIG2H, _WDTEN_OFF_2H & _WDTPS_32768_2H
@ __config _CONFIG3H, _CCP2MX_PORTB3_3H & _PBADEN_OFF_3H & _MCLRE_INTMCLR_3H
@ __config _CONFIG4L, _STVREN_OFF_4L & _LVP_OFF_4L & _XINST_OFF_4L & _DEBUG_OFF_4L
@ __config _CONFIG5L, _CP0_OFF_5L & _CP1_OFF_5L & _CP2_OFF_5L & _CP3_OFF_5L
@ __config _CONFIG5H, _CPB_OFF_5H & _CPD_OFF_5H
@ __config _CONFIG6L, _WRT0_OFF_6L & _WRT1_OFF_6L & _WRT2_OFF_6L & _WRT3_OFF_6L
@ __config _CONFIG6H, _WRTC_OFF_6H & _WRTB_OFF_6H & _WRTD_OFF_6H
@ __config _CONFIG7L, _EBTR0_OFF_7L & _EBTR1_OFF_7L & _EBTR2_OFF_7L & _EBTR3_OFF_7L
@ __config _CONFIG7H, _EBTRB_OFF_7H

All interrupts and ADC's are disabled also.


Quote Originally Posted by Dave View Post
I would start by checking the comfigurations of the pins being used to connect the one wire devices. There are quite a few new configuration registers compared to the 4620. I have converted a lot of code from the 4620 to 46K22. Look at the data sheet. Your code should be compatable 100%. Just look at the config's.