XC68HC08KH12 Motorola, XC68HC08KH12 Datasheet - Page 126

• Manufacturer Part Number: XC68HC08KH12
• Description: MICROCONTROLLER
• Manufacturer: Motorola

Universal Serial Bus Module (USB)
Advance Information
126
NOTE:
RSTF — USB Reset Flag
RSTFR — Clear Reset Indicator Bit
LOCKF — USB Frame Timer Locked
LOCKFR — Clear Frame Timer Locked Flag
SOFFR — Start Of Frame Flag Reset
EOF2FR — The Second End of Frame Point Flag Reset
EOPFR — End of Packet Flag Reset
TRANFR — Bus Signal Transition Flag Reset
This read only bit is set when a valid reset signal state is detected on
the D0+ and D0- lines. This reset detection will also generate an
internal reset signal to reset the CPU and other peripherals including
the USB module. This bit is cleared by writing a logic 1 to the RSTFR
bit.
** Please note RSTF bit is only be reset by a POR reset.
Writing a logic 1 to this write only bit will clear the RSTF bit if it is set.
Writing a logic 0 to the RSTFR has no effect. Reset clears this bit.
This read only bit is set when the internal frame timer is locked to the
host timer. This bit is cleared by writing a logic 1 to the LOCKFR bit.
Reset clears this bit.
Writing a logic 1 to this write only bit will clear the LOCKF bit if it is set.
Writing a logic 0 to the LOCKFR has no effect. Reset clears this bit.
Writing a logic 1 to this write only bit will clear the SOFF bit if it is set.
Writing a logic 0 to the SOFFR has no effect. Reset clears this bit.
Writing a logic 1 to this write only bit will clear the EOF2F bit if it is set.
Writing a logic 0 to the EOF2FR has no effect. Reset clears this bit.
Writing a logic 1 to this write only bit will clear the EOPF bit if it is set.
Writing a logic 0 to the EOPFR has no effect. Reset clears this bit.
Writing a logic 1 to this write only bit will clear the TRANF bit if it is set.
Writing a logic 0 to the TRANFR has no effect. Reset clears this bit.
Universal Serial Bus Module (USB)
MC68HC(7)08KH12
MOTOROLA
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Rev. 1.0