C8051F349-GMR Silicon Labs, C8051F349-GMR Datasheet - Page 104
C8051F349-GMR
Manufacturer Part Number
C8051F349-GMR
Description
8-bit Microcontrollers - MCU 25 MIPS 32KB USB MCU
Manufacturer
Silicon Labs
Datasheet
1.C8051F349-GMR.pdf
(276 pages)
Specifications of C8051F349-GMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
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C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
11.8. Software Reset
Software may force a reset by writing a ‘1’ to the SWRSF bit (RSTSRC.4). The SWRSF bit will read ‘1’ fol-
lowing a software forced reset. The state of the RST pin is unaffected by this reset.
11.9. USB Reset
Writing ‘1’ to the USBRSF bit in register RSTSRC selects USB0 as a reset source. With USB0 selected as
a reset source, a system reset will be generated when either of the following occur:
The USBRSF bit will read ‘1’ following a USB reset. The state of the RST pin is unaffected by this reset.
104
1. RESET signaling is detected on the USB network. The USB Function Controller (USB0) must
2. The voltage on the VBUS pin matches the polarity selected by the VBPOL bit in register
be enabled for RESET signaling to be detected. See
troller (USB0)” on page 159
REG0CN. See
detection circuit.
Section “8. Voltage Regulator (REG0)” on page 69
for information on the USB Function Controller.
Rev. 1.3
Section “16. Universal Serial Bus Con-
for details on the VBUS
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