T89C51RB2 데이터 시트보기 (PDF) - Atmel Corporation
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T89C51RB2 Datasheet PDF : 9 Pages
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T89C51RB2/RC2
Table 2. Sfr mapping
Table below shows all SFRs with their address and their reset value.
Bit
addressable
Non Bit addressable
0/8
F8h
1/9
2/A
3/B
4/C
5/D
6/E
7/F
CH
CCAP0H
CCAP1H
CCAPL2H CCAPL3H CCAPL4H
0000 0000 XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
FFh
F0h
B
0000 0000
F7h
E8h
CL
CCAP0L
CCAP1L
CCAPL2L CCAPL3L CCAPL4L
0000 0000 XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
EFh
E0h
ACC
0000 0000
E7h
D8h
CCON
00X0 0000
CMOD
00XX X000
CCAPM0
X000 0000
CCAPM1
X000 0000
CCAPM2
X000 0000
CCAPM3
X000 0000
CCAPM4
X000 0000
DFh
D0h
PSW
0000 0000
FCON (1)
XXXX 0000
D7h
C8h
T2CON
T2MOD
RCAP2L
0000 0000 XXXX XX00 0000 0000
RCAP2H
0000 0000
TL2
0000 0000
TH2
0000 0000
CFh
C0h
SPCON
0001 0100
SPSTA
SPDAT
0000 0000 XXXX XXXX
C7h
B8h
IPL0
X000 000
SADEN
0000 0000
BFh
B0h
P3
1111 1111
IE1
IPL1
IPH1
XXXX X000 XXXX X000 XXXX X111
A8h
IE0
0000 0000
SADDR
0000 0000
A0h
P2
1111 1111
AUXR1
XXXX X0X0
IPH0
X000 0000
B7h
CKCON1
XXXX XXX0
AFh
WDTRST WDTPRG
XXXX XXXX XXXX X000
A7h
98h
SCON
SBUF
BRL
0000 0000 XXXX XXXX 0000 0000
BDRCON
XXX0 0000
KBLS
0000 0000
KBE
0000 0000
KBF
0000 0000
9Fh
90h
P1
1111 1111
CKRL
1111 1111
97h
88h
TCON
0000 0000
TMOD
0000 0000
TL0
0000 0000
TL1
0000 0000
TH0
0000 0000
TH1
0000 0000
AUXR
XX0X 0000
CKCON0
0000 0000
8Fh
80h
P0
1111 1111
SP
0000 0111
DPL
0000 0000
DPH
0000 0000
PCON
00X1 0000
87h
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F
reserved
(1) FCON access is reserved for the FLASH API and ISP software.
4
Rev. B - 30-Mar-01
Preliminary
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