Anyone can help about how to realize to make 16F15355 work correctly with Internal Oscillator on 4MHz clock frequency.
How to adjust config 1 – 5 and other registers to realize that.
Here is a default configs from 16F15355.INFO file

MPASM __CONFIG Directive Options
;
; The PBP default configuration for the PIC16F15355 is:
;
; #CONFIG
; __config _CONFIG1, _FEXTOSC_OFF & _RSTOSC_HFINT32 & _CLKOUTEN_OFF & _CSWEN_ON & _FCMEN_ON
; __config _CONFIG2, _MCLRE_ON & _PWRTE_ON & _LPBOREN_OFF & _BOREN_ON & _BORV_LO & _ZCD_OFF & _PPS1WAY_OFF & _STVREN_ON
; __config _CONFIG3, _WDTCPS_WDTCPS_11 & _WDTE_ON & _WDTCWS_WDTCWS_6 & _WDTCCS_SC
; __config _CONFIG4, _BBSIZE_BB512 & _BBEN_OFF & _SAFEN_OFF & _WRTAPP_OFF & _WRTB_OFF & _WRTC_OFF & _WRTSAF_OFF & _LVP_OFF
; __config _CONFIG5, _CP_OFF
; #ENDCONFIG

What have to be changed from Available __CONFIG labels for PIC16F15355 from 16F15355.INFO file in above configs?
Is it necessary to additionally add setting in OSCON1, OSCON2, OSCON3, OSCFRQ, OSCSTAT, OSCTUNE, OSCEN registers ?