Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1135 of 1513
Aug 12, 2011
Figure 21-7. Operation of UF0BO1 Register (1/2)
(a) Operation example 1
SIE side
CPU side
Status of
UF0BO1 register
Reception
completed
FIFO toggle
FIFO toggle
ACK
transmission
Reception
starts
Reception
completed
ACK
transmission
BKO1NK bit of
UF0EN register
BKO1FL bit of
UF0IS3 register
BKOUT1 bit of
UF0EPS0 register
BKO1DT bit of
UF0IS3 register
Transfer of data less
than 64 bytes
64-byte transfer64-byte transfer
FIFO_0
FIFO_1
FIFO_1
FIFO_0
Reading
FIFO
starts
Reading
FIFO
completed
Reading
FIFO
starts
Reading
FIFO
completed
FW clear
FIFO_0
FIFO_1
Hardware
clear
Hardware
clear
Hardware
clear