CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
Preliminary User’s Manual U19014EJ1V0UD
353
Table 12-8. Register Values in Specific Status (2/2)
Register Name
After CPU Reset (RESET)
After Bus Reset
UF0E0R register
Undefined
Note 1
Value is held.
UF0E0L register
00H
Value is held.
UF0E0ST register
00H
00H
UF0E0W register
Undefined
Note 1
Value is held.
UF0BO1 register
Undefined
Note 1
Value is held.
UF0BO1L register
00H
Value is held.
UF0BI1 register
Undefined
Note 1
Value is held.
UF0DSTL register
00H
00H
UF0E0SL register
00H
00H
UF0E1SL register
00H
00H
UF0E2SL register
00H
00H
UF0ADRS register
00H
00H
UF0CNF register
00H
00H
UF0IF0 register
00H
00H
UF0IF1 register
00H
00H
UF0IF2 register
00H
00H
UF0IF3 register
00H
00H
UF0IF4 register
00H
00H
UF0DSCL register
00H
Value is held.
UF0DDn register (n = 0 to 17)
Note 2
Note 2
UF0CIEn register (n = 0 to 255)
Note 2
Note 2
Notes 1.
This register can be cleared to 0 by the RESET signal because its write pointer, counter, and read
pointer are cleared to 0 when the RESET signal becomes active, in the same manner as clearing by the
UF0FICn register, as the register is controlled by FIFO.
2.
This register cannot be cleared to 0. Because data can be written to it by FW, however, any value can
be written to the register (before doing so, however, be sure to set the EP0NKA bit of the UF0E0NA
register to 1).
electronic components distributor