C8051F321R Silicon Laboratories Inc, C8051F321R Datasheet - Page 86

• Manufacturer Part Number: C8051F321R
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321R

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 336-1067-2

C8051F320/1
86
Bits7-0:
Bits7-0:
ACC.7
R/W
R/W
B.7
Bit7
Bit7
ACC: Accumulator.
This register is the accumulator for arithmetic operations.
B: B Register.
This register serves as a second accumulator for certain arithmetic operations.
ACC.6
R/W
R/W
B.6
Bit6
Bit6
ACC.5
R/W
R/W
Bit5
B.5
Bit5
Figure 9.7. ACC: Accumulator
ACC.4
Figure 9.8. B: B Register
R/W
R/W
Bit4
B.4
Bit4
Rev. 1.1
ACC.3
R/W
R/W
Bit3
B.3
Bit3
ACC.2
R/W
R/W
Bit2
B.2
Bit2
ACC.1
R/W
R/W
B.1
Bit1
Bit1
(bit addressable)
(bit addressable)
ACC.0
R/W
R/W
B.0
Bit0
Bit0
SFR Address:
SFR Address:
00000000
00000000
Reset Value
Reset Value
0xE0
0xF0