at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 9

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

Table 3. C51 Core SFRs
Table 4. System Management SFRs
Table 5. Interrupt SFRs
Table 6. Port SFRs
7663B–8051–03/07
PCON
AUXR
AUXR1
CKRL
BMSEL
CKCON0
CKCON1
IEN0
IEN1
IPH0
IPL0
IPH1
IPL1
P0
P1
P2
P3
P4
Mnemonic
Mnemonic
Mnemonic
Mnemonic
PSW
ACC
DPH
DPL
SP
B
Add
Add
Add
Add
D0h
AFh
C0h
E0h
F0h
8Eh
A2h
8Fh
A8h
B1h
B7h
B8h
B3h
B2h
A0h
B0h
81h
82h
83h
87h
97h
92h
80h
90h
Name
Accumulator
B Register
Program Status Word
Stack Pointer
Data Pointer Low byte
Data Pointer High byte
Name
Power Control
Auxiliary Register 0
Auxiliary Register 1
Clock Reload Register
Bank Memory Select
Clock Control Register 0
Clock Control Register 1
Name
Interrupt Enable Control 0
Interrupt Enable Control 1
Interrupt Priority Control High 0
Interrupt Priority Control Low 0
Interrupt Priority Control High 1
Interrupt Priority Control Low 1
Name
8-bit Port 0
8-bit Port 1
8-bit Port 2
8-bit Port 3
8-bit Port 4
SMOD1_0
MBO2
EES
CY
EA
7
7
7
7
-
-
-
-
-
-
-
-
-
SMOD0_0
WDX2
MBO1
PPCH
PPCL
SP9
AC
EC
6
6
6
6
-
-
-
-
-
-
PCAX2
MBO0
PT2H
PT2L
ET2
M0
U2
F0
5
5
5
5
-
-
-
-
-
-
SIX2_0
XRS2
POF
PSH
RS1
PSL
ES
4
4
4
4
-
-
-
-
-
-
PSH_1
PSL_1
XRS1
ES_1
PT1H
T2X2
PT1L
RS0
GF1
GF2
ET1
3
3
3
3
-
-
-
XRS0
PX1H
FBS2
PX1L
T1X2
ESPI
SPIH
SPIL
GF0
EX1
OV
2
2
2
2
0
-
-
EXTRA
SIX2_1
IE2CH
IE2CL
FBS1
ETWI
PT0H
T0X2
PT0L
ET0
PD
F1
1
1
M
1
1
-
-
SPIX2
KBDH
EKBD
PX0H
KBDL
FBS0
PX0L
DPS
EX0
IDL
AO
X2
0
0
0
0
P
-
9