DS80C400 Maxim, DS80C400 Datasheet - Page 39

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

Note: Shaded bits are timed-access protected. “Special” bits are affected only by certain types of reset. Refer to the user’s guide for details.
REGISTER
STATUS1
RCAP2H
SADDR2
STATUS
OWMAD
OWMDR
SADEN2
RCAP2L
WDCON
T2MOD
MCON1
MCON2
T2CON
MCNT0
MCNT1
SCON2
SBUF2
MCON
OCAD
CSRD
CSRA
BCUD
BCUC
MXAX
DPH2
DPH3
T3CM
BPA1
BPA2
BPA3
DPX2
DPX3
DPL2
DPL3
DPS1
PSW
COR
ACC
EBS
TH2
TH3
TL2
TL3
MC
EIE
EIP
MA
MB
TA
P7
B
BIT 7
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
Special
BIT 6
0
0
1
0
1
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
BIT 5
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
Special
BIT 4
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
39 of 97
BIT 3
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
Special
BIT 2
0
0
1
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
BIT 1
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
BIT 0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
1
0
0
0
0
0
ADDRESS
CAh
CBh
CCh
CDh
CEh
DAh
DBh
DCh
EDh
C5h
C6h
C7h
C8h
C9h
D0h
D1h
D2h
D3h
D4h
D5h
D6h
D7h
D8h
D9h
EAh
EBh
EEh
EFh
FBh
FCh
FDh
FEh
E0h
E1h
E3h
E4h
E5h
E6h
E7h
E8h
F0h
F1h
F2h
F3h
F4h
F5h
F6h
F7h
F8h
F9h
FFh