C8051F02X Datasheet, PDF (115/272 Pages) Silicon Laboratories – 8K ISP FLASH MCU Family

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