Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1107 of 1513
Aug 12, 2011
(24) UF0 INT clear 3 register (UF0IC3)
This register controls clearing the interrupt sources indicated by the UF0IS3 register.
This register is write-only, in 8-bit units. If this register is read, the value FFH is read.
FW can clear an interrupt source by writing 0 to the corresponding bit of this register. Even a bit that is
automatically cleared to 0 by hardware can be cleared by FW before it is cleared by hardware. Writing 0 to a bit of
this register automatically sets the bit to 1. Writing 1 is invalid.
The related bits are invalid if each endpoint is not supported by the setting of the UF0EnIM register (n = 2, 4) and
the current setting of the interface.
BKO2
FLC
UF0IC3
BKO2
NLC
5
BKO2
NAKC
BKO2
DTC
3
BKO1
FLC
2
BKO1
NLC
1
BKO1
NAKC
BKO1
DTC
Address
00200042H
After reset
FFH
0467
Bit position Bit name Function
7, 3 BKOnFLC
These bits clear the BLKOnFL interrupt.
0: Clear
6, 2 BKOnNLC
These bits clear the BLKOnNL interrupt.
0: Clear
5, 1 BKOnNAKC
These bits clear the BLKOnNK interrupt.
0: Clear
4, 0 BKOnDTC
These bits clear the BLKOnDT interrupt.
0: Clear
Remark n = 1, 2