
47
AT85C51SND3Bx
7632A–MP3–03/06
Notes: 1. SFR registers with least significant nibble address equal to 0 or 8 are bit-addressable.
2. Available in AT85C51SND3B2 & AT85C51SND3B3 only.
Table 61. SFR Page 2: Addresses and Reset Values
0/8 1/9 2/A 3/B 4/C 5/D 6/E 7/F
F8h
SCHGPR3
0000
0000
SCHGPR2
0000
0000
SCHGPR1
0000
0000
SCHGPR0
0000
0000
FFh
F0h
B
(1)
0000 0000
APRDVOL
0000
0011
APLDVOL
0000
0011
APBDVOL
0001
1111
APMDVOL
0001
1111
APTDVOL
0001
1111
F7h
E8h
ASSTA2
0000
0000
ACCON
0000
0000
ACORG
(1)
0000 0000
ACOLG
(1)
0000 0000
ACIPG
0000
0000
ADICON0
0000
0000
ADICON1
0000
0000
EFh
E0h
ACC
(1)
0000 0000
ASCON
0000
0000
ASSTA0
0000
0000
ASSTA1
0000
0000
ACAUX
0000 0000
E7h
D8h
DFh
D0h
PSW
(1)
0000 0000
D7h
C8h
APTIM2
0000
0000
CFh
C0h
PPCON
(1)
0000 0001
APTIM0
0000
0000
APTIM1
0000
0000
C7h
B8h
BFh
B0h
P3
(1)
1111 1111
B7h
A8h
AFh
A0h
P2
(1)
1111 1111
A7h
98h
9Fh
90h
P1
(1)
1111 1111
97h
88h
8Fh
80h
P0
(1)
1111 1111
SP
0000
0111
DPL
0000
0000
DPH
0000
0000
87h
0/8 1/9 2/A 3/B 4/C 5/D 6/E 7/F
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