Special-function register reset values – Maxim Integrated High-Speed Microcontroller Users Guide: Network Microcontroller Supplement User Manual
Page 21

Special-Function Register Reset Values
High-Speed Microcontroller User’s
Guide: Network Microcontroller
Supplement
21
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
0
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
1
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
ESP
1
1
1
1
1
1
0
0
9Bh
AP
0
0
0
0
0
0
0
0
9Ch
ACON
1
1
0
0
SPECIAL
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
P5CNT*
1
0
0
0
0
0
0
0
A2h
C0C*
0
0
0
0
1
0
0
1
A3h
C0S*
0
0
0
0
0
0
0
0
A4h
C0IR*
0
0
0
0
0
0
0
0
A5h
C0TE*
0
0
0
0
0
0
0
0
A6h
C0RE*
0
0
0
0
0
0
0
0
A7h
IE
0
0
0
0
0
0
0
0
A8h
SADDR0
0
0
0
0
0
0
0
0
A9h
SADDR1
0
0
0
0
0
0
0
0
AAh
C0M1C*
0
0
0
0
0
0
0
0
ABh
C0M2C*
0
0
0
0
0
0
0
0
ACh
C0M3C*
0
0
0
0
0
0
0
0
ADh
C0M4C*
0
0
0
0
0
0
0
0
AEh
C0M5C*
0
0
0
0
0
0
0
0
AFh
P3
1
1
1
1
1
1
1
1
B0h
P6
1
1
1
1
1
1
1
1
B1h
P6CNT
0
0
0
0
0
0
0
0
B2h
C0M6C*
0
0
0
0
0
0
0
0
B3h
C0M7C*
0
0
0
0
0
0
0
0
B4h
C0M8C*
0
0
0
0
0
0
0
0
B5h
C0M9C*
0
0
0
0
0
0
0
0
B6h
C0M10C*
0
0
0
0
0
0
0
0
B7h
Maxim Integrated