C8051F131R Silicon Labs, C8051F131R Datasheet - Page 153

• Manufacturer Part Number: C8051F131R
• Description: 8-bit Microcontrollers - MCU 128kB 100MIPS 8448B RAM
• Manufacturer: Silicon Labs

Specifications of C8051F131R

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 100 MHz
• Program Memory Size: 128 KB
• Data Ram Size: 8.25 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 9
• Data Rom Size: 64 KB
• Interface Type: I2C, SMBus, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 500
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V

Bits7–0: ACC: Accumulator.
Bits7–0: B: B Register.
ACC.7
R/W
R/W
B.7
Bit7
Bit7
This register is the accumulator for arithmetic operations.
This register serves as a second accumulator for certain arithmetic operations.
ACC.6
R/W
R/W
B.6
Bit6
Bit6
SFR Definition 11.10. ACC: Accumulator
ACC.5
R/W
R/W
B.5
Bit5
Bit5
SFR Definition 11.11. B: B Register
ACC.4
R/W
R/W
B.4
Bit4
Bit4
Rev. 1.4
ACC.3
R/W
R/W
B.3
Bit3
Bit3
C8051F120/1/2/3/4/5/6/7
ACC.2
R/W
R/W
B.2
Bit2
Bit2
C8051F130/1/2/3
ACC.1
R/W
R/W
B.1
Bit1
Bit1
SFR Address:
SFR Address:
SFR Page:
SFR Page:
ACC.0
R/W
R/W
B.0
Bit0
Bit0
0xE0
All Pages
0xF0
All Pages
00000000
Addressable
00000000
Addressable
Reset Value
Reset Value
Bit
Bit
153