C8051F320DK Silicon Laboratories Inc, C8051F320DK Datasheet - Page 70

• Manufacturer Part Number: C8051F320DK
• Description: DEV KIT FOR C8051F320/F321
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F320DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F320/F321
• Interface Type: USB
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F320
• Silicon Family Name: C8051F32x
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Silicon Laboratories C8051F320, C8051F321
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1260

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