C8051F321 Silicon Laboratories Inc, C8051F321 Datasheet - Page 94

• Manufacturer Part Number: C8051F321
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321

• 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: -

C8051F320/1
94
Bits7-1:
Bit0:
Bits7-1:
Bit0:
R/W
R/W
Bit7
Bit7
-
-
UNUSED. Read = 0000000b. Write = don’t care.
EVBUS: Enable VBUS Level Interrupt.
This bit sets the masking of the VBUS interrupt.
0: Disable all VBUS interrupts.
1: Enable interrupt requests generated by VBUS level sense.
UNUSED. Read = 0000000b. Write = don’t care.
PVBUS: VBUS Level Interrupt Priority Control.
This bit sets the priority of the VBUS interrupt.
0: VBUS interrupt set to low priority level.
1: VBUS interrupt set to high priority level.
R/W
R/W
Bit6
Bit6
-
-
Figure 9.14. EIP2: Extended Interrupt Priority 2
Figure 9.13. EIE2: Extended Interrupt Enable 2
R/W
R/W
Bit5
Bit5
-
-
R/W
R/W
Bit4
Bit4
-
-
Rev. 1.1
R/W
R/W
Bit3
Bit3
-
-
R/W
R/W
Bit2
Bit2
-
-
R/W
R/W
Bit1
Bit1
-
-
EVBUS
PVBUS
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
00000000
00000000
Reset Value
Reset Value
0xE7
0xF7