Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1176 of 1513
Aug 12, 2011
(2) UF0 EP4 bulk-out transfer data register (UF0EP4BO)
The UF0EP4BO register writes the bulk-out transfer data of EP4.
The UF0EP4BO register can be read or written in 8-bit or 16-bit units.
After reset: 0000H R Address: 00220000H
15 14 13 12 11 10 9 8
UF0EP4BO 0 0 0 0 0 0 0 0
7 6 5 4 3 2 1 0
EP4BO7 EP4BO6 EP4BO5 EP4BO4 EP4BO3 EP4BO2 EP4BO1 EP4BO0
Bit position Bit name Function
7 to 0
EP4BO7 to
EP4BO0
Reading the bulk-out transfer data of EP4.
Reading the input data from the EPC macro from this register.
If using this register, setting the address (00220000H) in DMA source address register
(DSAn (n = 0 to 3)) of DMAC. In addition, set the RQnUR2E (n = 0 to 3) bit of the UFDRQEN
register to 1 to assign a DMA channel.
Caution If either of the following operations is performed, the data stored in this register is read out and
the next bulk-out transfer data is stored into this register.
• The UF0EP4BO register is read during program execution.
• The UF0EP4BO register is monitored on the memory window while the debugger is being used.