C8051F045 查看數據表（PDF） - Silicon Laboratories

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C8051F045

Mixed Signal ISP Flash MCU Family

Silicon Laboratories 

C8051F040/1/2/3/4/5/6/7

SFR Definition 12.9. 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

R/W

ACC.1

Bit1

R/W

Reset Value

ACC.0 00000000

Bit0

Bit

Addressable

SFR Address: 0xE0

SFR Page: All Pages

Bits7-0: ACC: Accumulator.

This register is the accumulator for arithmetic operations.

SFR Definition 12.10. 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

Bit

Addressable

SFR Address: 0xF0

SFR Page: All Pages

Bits7-0: B: B Register.

This register serves as a second accumulator for certain arithmetic operations.

152

Rev. 1.5

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