Datasheet

Table Of Contents
Section 15 Universal Serial Bus Interface (USB)
Page 526 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Bit Bit Name Initial Value R/W Description
1
EP4iTR
0
R/(W)
*
EP4i Transfer Request
Set to 1 if the EP4i FIFO is empty when an IN token is
sent form the host to EPi4. The corresponding
interrupt output is EXIRQ0 or EXIRQ1.
0
EP4iEMPTY
1
R
EP4i FIFO Empty
EP4i FIFO has a dual-FIFO configuration. This flag is
set if at least one EP4i FIFO is empty. This flag is
cleared to 0 if EP4i FIFO is full. This flag is a status
flag and cannot be cleared. The corresponding
interrupt output is EXIRQ0 or EXIRQ1.
Note: * The write value should always be 0 to clear this flag.