C8051F320-TB Silicon Laboratories Inc, C8051F320-TB Datasheet - Page 70
![no-image](/images/manufacturer_photos/0/6/609/silicon_laboratories_inc_sml.jpg)
C8051F320-TB
Manufacturer Part Number
C8051F320-TB
Description
BOARD PROTOTYPING W/C8051F320
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F320-TB
Contents
Board
Processor To Be Evaluated
C8051F320/F321
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F320
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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C8051F320/1
70
Bit7:
Bit6:
Bit5:
Bit4:
Bits3–0: Reserved. Read = 0000b. Must Write = 0000b.
REGDIS
R/W
Bit7
REGDIS: Voltage Regulator Disable.
REGMOD: Voltage Regulator Mode Select.
0: Voltage Regulator Enabled.
1: Voltage Regulator Disabled.
VBSTAT: VBUS Signal Status.
0: VBUS signal currently absent (device not attached to USB network).
1: VBUS signal currently present (device attached to USB network).
VBPOL: VBUS Interrupt Polarity Select.
This bit selects the VBUS interrupt polarity.
0: VBUS interrupt active when VBUS is low.
1: VBUS interrupt active when VBUS is high.
This bit selects the Voltage Regulator mode. When REGMOD is set to ‘1’, the voltage regu-
lator operates in low power (suspend) mode.
0: USB0 Voltage Regulator in normal mode.
1: USB0 Voltage Regulator in low power mode.
Power Net
Power Net
VBSTAT
From 5V
To 3V
SFR Definition 8.1. REG0CN: Voltage Regulator Control
Bit6
R
Figure 8.5. REG0 Configuration: No USB Connection
VBPOL
R/W
Bit5
REGIN
VBUS
VDD
REGMOD Reserved Reserved Reserved Reserved 00000000
R/W
Bit4
C8051F320/1
Rev. 1.4
R/W
Bit3
5V In
R/W
Bit2
Voltage Regulator (REG0)
VBUS Sense
3V Out
R/W
Bit1
R/W
Bit0
Power Net
Device
SFR Address:
Reset Value
0xC9
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