C8051F020 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F020

8K ISP FLASH MCU Family

Silicon Laboratories 

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

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