CC2510FX Datasheet, PDF (178/244 Pages) List of Unclassifed Manufacturers – True System-on-Chip with Low Power RF Transceiver and 8051 MCU

C2510Fx / CC2511Fx
Figure 44: Writing Big/Little Endian
Figure 45: Reading Big/Little Endian
13.16.8 USB Reset
When reset signaling is detected on the bus,
the USBCIF.RSTIF flag will be asserted. If
USBCIE.RSTIE is enabled, IRCON2.USBIF
will also be asserted and an interrupt request
is generated if IEN2.USBIE=1. The firmware
should take appropriate action when a USB
reset occurs. A USB reset should place the
device in the Default state where it will only
respond to address 0 (the default address).
One or more resets will normally take place
during the enumeration phase right after the
USB cable is connected.
The following actions are performed by the
USB controller when a USB reset occurs:
• USBADDR is set to 0
• USBINDEX is set to 0
• All endpoint FIFOs are flushed
• USBCS0,
USBCSIL,
USBCSIH,
USBCSOL, USBCSOH are cleared.
• All interrupts, except SOF and suspend,
are enabled
• An interrupt request is generated (if
IEN2.USBIE=1
and
USBCIE.RSTIE=1)
Firmware should close all pipes and wait for a
new enumeration phase when USB reset is
detected.
13.16.9 Suspend and Resume
The USB controller will assert
USBCIF.SUSPENDIF and enter suspend
mode when the USB bus has been
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