
C8051F020/1/2/3
Rev. 1.4
115
Figure 12.7. ACC: Accumulator
Bits7-0:
ACC: Accumulator.
This register is the accumulator for arithmetic operations.
R/W
Reset Value
ACC.7
ACC.6
ACC.5
ACC.4
ACC.3
ACC.2
ACC.1
ACC.0
00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
(bit addressable)
0xE0
Figure 12.8. B: B Register
Bits7-0:
B: B Register.
This register serves as a second accumulator for certain arithmetic operations.
R/W
Reset Value
B.7
B.6
B.5
B.4
B.3
B.2
B.1
B.0
00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
(bit addressable)
0xF0