Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1148 of 1513
Aug 12, 2011
Figure 21-10. Operation of UF0BI2 Register (3/3)
(c) Operation example 3
SIE side
CPU side
Status of
UF0BI2 register
Transmission
completed
FIFO toggle
FIFO toggle
ACK
reception
Transmission
starts
Transmission
completed
ACK
reception
BKI2NK bit of
UF0EN register
Short packet transfer64-byte transfer
FIFO_0
FIFO_1
FIFO_1
FIFO_0
FIFO
clear
Writing
FIFO
starts
Writing
FIFO
completed
BKI2DT bit of
UF0IS2 register
Hardware clear
INT clear
(FW clear)
BKI2DED bit of
UF0DEND register is set.
BKI2DED bit of
UF0DEND register is set.
FIFO_0
FIFO_1
Transfer of Null packet