upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 312

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

312
(27) UF0 FIFO clear 1 register (UF0FIC1)
UF0FIC1
Bit position
This register clears each FIFO.
This register is write-only, in 8-bit units. If this register is read, 00H is read.
FW can clear the target FIFO by writing 1 to the corresponding bit of this register. The bit to which 1 has been
written is automatically cleared to 0. Writing 0 to the bit is invalid.
The related bits are invalid if each endpoint is not supported by the setting of the UF0E2IM register and the
current setting of the interface.
1
0
7
0
BKO1C
BKO1CC
Bit name
6
0
CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
This bit clears the FIFOs on both the SIE and CPU sides of the UF0BO1 register (reset
the counter).
When the BKO1NK bit is set to 1 (except when it has been set by FW), the BKO1NK bit
is automatically cleared to 0 by clearing the FIFO.
This bit clears only the FIFO on the CPU side of the UF0BO1 register (reset the
counter).
When the BKO1NK bit is set to 1 (except when it has been set by FW), the BKO1NK bit
is automatically cleared to 0 by clearing the FIFO.
5
0
1: Clear
1: Clear
Preliminary User’s Manual U19014EJ1V0UD
0
4
3
0
2
0
Function
BKO1C
1
BKO1CC
0
Address
FF7AH
After reset
00H