AT89C51ID2-SMSIM ATMEL [ATMEL Corporation], AT89C51ID2-SMSIM Datasheet - Page 5

• Manufacturer Part Number: AT89C51ID2-SMSIM
• Description: 8-bit Flash Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

Table 2. C51 Core SFRs
Table 3. System Management SFRs
Table 4. Interrupt SFRs
4289A–8051–09/03
PCON
AUXR
AUXR1
CKRL
CKSEL
OSCON
IEN0
IEN1
IPH0
IPL0
IPH1
IPL1
Mnemonic
Mnemonic
Mnemonic
PSW
ACC
DPH
DPL
SP
B
Add
Add
Add
D0h
E0h
F0h
8Eh
A2h
A8h
B1h
B7h
B8h
B3h
B2h
81h
82h
83h
87h
97h
85h
86h
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
Clock Selection Register
Oscillator Control Register
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
SMOD1
CY
EA
7
7
7
-
-
-
-
-
-
-
-
-
-
SMOD0
PPCH
PPCL
AC
EC
6
6
6
-
-
-
-
-
-
-
-
ENBOO
PT2H
PT2L
ET2
M0
F0
5
5
5
T
-
-
-
-
-
-
-
XRS2
POF
PSH
RS1
PSL
ES
4
4
4
-
-
-
-
-
-
-
XRS1
PT1H
PT1L
RS0
GF1
GF3
ET1
3
3
3
-
-
-
-
-
-
SCLKT0
XRS0
PX1H
PX1L
SPIH
ESPI
SPIL
GF0
EX1
OV
2
2
2
AT89C51ID2
0
-
-
OscBEn
EXTRA
IE2CH
IE2CL
PT0H
PT0L
EI2C
ET0
PD
F1
1
1
1
M
-
-
-
OscAEn
KBDH
EKBD
PX0H
KBDL
PX0L
DPS
CKS
EX0
IDL
AO
0
0
0
P
-
5