AT89C51RB2-3CSUM 데이터 시트보기 (PDF) - Atmel Corporation
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AT89C51RB2-3CSUM Datasheet PDF : 127 Pages
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Table 11 shows all SFRs with their address and their reset value.
Table 11. SFR Mapping
Bit
addressable
Non Bit addressable
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F
CH
CCAP0H
CCAP1H
CCAPL2H
CCAPL3H
CCAPL4H
F8h
FFh
0000 0000
XXXX
XXXX
XXXX
XXXX
XXXX
F0h
B
0000 0000
F7h
CL
CCAP0L
CCAP1L
CCAPL2L
CCAPL3L
CCAPL4L
E8h
EFh
0000 0000 XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
E0h
ACC
0000 0000
E7h
CCON
CMOD
CCAPM0
CCAPM1
CCAPM2
CCAPM3
CCAPM4
D8h
DFh
00X0 0000
00XX X000
X000 0000
X000 0000
X000 0000
X000 0000
X000 0000
D0h
PSW
0000 0000
FCON (1)
XXXX 0000
D7h
C8h
T2CON
0000 0000
T2MOD
XXXX XX00
RCAP2L
0000 0000
RCAP2H
0000 0000
TL2
0000 0000
TH2
0000 0000
CFh
SPCON
SPSTA
SPDAT
C0h
C7h
0001 0100
0000 0000 XXXX XXXX
IPL0
SADEN
B8h
BFh
X000 000
0000 0000
P3
IEN1
IPL1
IPH1
B0h
1111 1111
XXXXX 000 XXXXX000 XXXX X000
IPH0
B7h
X000 0000
IEN0
A8h
0000 0000
SADDR
0000 0000
CKCON1
AFh
XXXX XXX0
P2
A0h
1111 1111
AUXR1
XXXXX0X0
WDTRST
WDTPRG
A7h
XXXX XXXX XXXX X000
SCON
SBUF
BRL
BDRCON
KBLS
KBE
KBF
98h
9Fh
0000 0000 XXXX XXXX 0000 0000
XXX0 0000
0000 0000
0000 0000
0000 0000
P1
90h
1111 1111
CKRL
97h
1111 1111
TCON
88h
0000 0000
TMOD
0000 0000
TL0
0000 0000
TL1
0000 0000
TH0
0000 0000
TH1
0000 0000
AUXR
XX0X 0000
CKCON0
8Fh
0000 0000
P0
80h
1111 1111
SP
0000 0111
DPL
0000 0000
DPH
0000 0000
PCON
87h
00X1 0000
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F
1.
FCON access is reserved for the Flash API and ISP software.
Reserved
8 AT89C51RB2/RC2
4180E–8051–10/06
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