DS80C400 Maxim, DS80C400 Datasheet - Page 38

• Manufacturer Part Number: DS80C400
• Description: The DS80C400 network microcontroller offers the highest integration available in an 8051 device
• Manufacturer: Maxim

Table 2. SFR Reset Values
REGISTER
C0RMS0
C0RMS1
SADDR0
SADDR1
C0TMA0
C0TMA1
C0M10C
SADEN0
SADEN1
C0M11C
C0M12C
C0M13C
C0M14C
C0M15C
CKCON
SCON0
C0M1C
C0M2C
C0M3C
C0M4C
C0M5C
C0M6C
C0M7C
C0M8C
C0M9C
SCON1
P4CNT
SBUF0
P5CNT
P6CNT
SBUF1
PCON
TCON
TMOD
ACON
DPH1
C0RE
DPL1
DPX1
C0TE
C0IR
DPH
DPS
EXIF
DPX
PMR
DPL
ESP
C0C
C0S
TH0
TH1
TL0
TL1
P4
SP
P1
AP
P2
P5
P3
P6
IE
IP
BIT 7
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
BIT 6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
1
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Special
BIT 5
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
BIT 4
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
38 of 97
Special
Special
BIT 3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
0
0
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Special
BIT 2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Special
BIT 1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
BIT 0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
ADDRESS
ACh
ADh
BCh
BDh
8Ch
8Dh
9Ch
9Dh
AAh
ABh
AEh
AFh
BAh
BBh
BEh
BFh
C0h
C1h
C4h
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
8Eh
90h
91h
92h
93h
95h
96h
97h
98h
99h
9Bh
9Eh
9Fh
A0h
A1h
A2h
A3h
A4h
A5h
A6h
A7h
A8h
A9h
B0h
B1h
B2h
B3h
B4h
B5h
B6h
B7h
B8h
B9h