89C51IC2-CM ATMEL [ATMEL Corporation], 89C51IC2-CM Datasheet - Page 5
89C51IC2-CM
Manufacturer Part Number
89C51IC2-CM
Description
8-bit Flash Microcontroller with 2-wire Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.89C51IC2-CM.pdf
(146 pages)
- Current page: 5 of 146
- Download datasheet (2Mb)
Table 2. C51 Core SFRs
Table 3. System Management SFRs
Table 4. Interrupt SFRs
4301A–8051–01/04
PCON
AUXR
AUXR1
CKRL
CKSEL
OSCON
CKCKON0
CKCKON1
IEN0
IEN1
IPH0
IPL0
IPH1
IPL1
Mnemonic
Mnemonic
Mnemonic
PSW
ACC
DPH
DPL
SP
B
Add
Add
Add
E0h
D0h
8Eh
A2h
AFh
A8h
B1h
B7h
B8h
B3h
B2h
F0h
81h
82h
83h
87h
97h
85h
86h
8Fh
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
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
SMOD1
TWIX2
CY
EA
7
7
7
-
-
-
-
-
-
-
-
-
-
-
SMOD0
WDTX2
PPCH
PPCL
AC
EC
6
6
6
-
-
-
-
-
-
-
-
-
ENBOO
PCAX2
PT2H
PT2L
ET2
M0
F0
5
5
5
T
-
-
-
-
-
-
-
-
SIX2
RS1
PHS
PLS
ES
4
4
4
-
-
-
-
-
-
-
-
-
XRS1
PT1H
T2X2
PT1L
RS0
GF1
GF3
ET1
3
3
3
-
-
-
-
-
-
-
SCLKT0
XRS0
PX1H
T1X2
PX1L
ESPI
SPIH
SPIL
GF0
EX1
OV
2
2
2
AT89C51IC2
0
-
-
-
OscBEn
EXTRA
ETWI
PT0H
TWIH
T0X2
PT0L
TWIL
ET0
PD
F1
1
1
M
1
-
-
-
-
OscAEn
SPIX2
KBDH
PX0H
KBDL
PX0L
DPS
CKS
KBD
EX0
IDL
AO
X2
0
0
0
P
-
5
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