Users Guide: DS80C390 Supplement Manual
High-Speed Microcontroller User’s Guide: DS80C390 Supplement 
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REGISTER  BIT 7  BIT 6  BIT 5  BIT 4  BIT 3  BIT 2  BIT 1  BIT 0  ADDRESS
MXAX  EAh 
C1M1C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  EBh 
C1M2C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  ECh 
C1M3C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  EDh 
C1M4C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  EEh 
C1M5C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  EFh 
B  F0h 
C1M6C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  F3h 
C1M7C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  F4h 
C1M8C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  F5h 
C1M9C MSRDY  ETI  ERI  INTRQ  EXTRQ  MTRQ ROW/TIH DTUP  F6h 
C1M10C MSRDY  ETI  ERI INTRQ  EXTRQ  MTRQ  ROW/TIH  DTUP  F7h 
EIP CANBIP C0IP  C1IP  PWDI PX5  PX4  PX3 PX2 F8h 
C1M11C MSRDY  ETI  ERI INTRQ  EXTRQ  MTRQ  ROW/TIH  DTUP  FBh 
C1M12C MSRDY  ETI  ERI INTRQ  EXTRQ  MTRQ  ROW/TIH  DTUP  FCh 
C1M13C MSRDY  ETI  ERI INTRQ  EXTRQ MTRQ ROW/TIH DTUP  FDh 
C1M14C MSRDY  ETI  ERI INTRQ  EXTRQ  MTRQ  ROW/TIH  DTUP  FEh 
C1M15C MSRDY  ETI  ERI INTRQ  EXTRQ  MTRQ  ROW/TIH  DTUP  FFh 
Table 4-2. SPECIAL FUNCTION REGISTER RESET VALUES  
REGISTER  BIT 7  BIT 6  BIT 5  BIT 4  BIT 3  BIT 2  BIT 1  BIT 0  ADDRESS
P4 1 1 1 1 1 1 1 1 80h 
SP 0 0 0 0 0 1 1 1 81h 
DPL 0 0 0 0 0 0 0 0 82h 
DPH 0 0 0 0 0 0 0 0 83h 
DPL1 0 0 0 0 0 0 0 0 84h 
DPH1 0 0 0 0 0 0 0 0 85h 
DPS 0 0 0 0 0 1 0 0 86h 
PCON 0 0 SPECIAL SPECIAL 0 0 0 0 87h 
TCON 0 0 0 0 0 0 0 0 88h 
TMOD 0 0 0 0 0 0 0 0 89h 
TL0 0 0 0 0 0 0 0 0 8Ah 
TL1 0 0 0 0 0 0 0 0 8Bh 
TH0 0 0 0 0 0 0 0 0 8Ch 
TH1 0 0 0 0 0 0 0 0 8Dh 
CKCON 0 0 0 0 0 0 0 1 8Eh 
P1 1 1 1 1 1 1 1 1 90h 
EXIF 0 0 0 0 SPECIAL SPECIAL SPECIAL 0 91h 
P4CNT 1 0 1 1 1 1 1 1 92h 
DPX 0 0 0 0 0 0 0 0 93h 
DPX1 0 0 0 0 0 0 0 0 95h 
C0RMS0 0 0 0 0 0 0 0 0 96h 
C0RMS1 0 0 0 0 0 0 0 0 97h 
SCON0 0 0 0 0 0 0 0 0 98h 
SBUF0 0 0 0 0 0 0 0 0 99h 
RID  SPECIAL SPECIAL SPECIAL SPECIAL SPECIAL SPECIAL SPECIAL SPECIAL  9Ah 
ESP 1 1 1 1 1 1 0 0 9Bh 
AP 0 0 0 0 0 0 0 0 9Ch 
ACON 1 1 1 1 1 0 0 0 9Dh 
C0TMA0 0 0 0 0 0 0 0 0 9Eh 
C0TMA1 0 0 0 0 0 0 0 0 9Fh 
P2 1 1 1 1 1 1 1 1 A0h 
P5 1 1 1 1 1 1 1 1 A1h 










