38K0 Datasheet, PDF (33/133 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

38K0 Group
b7
b0
0
USB function address register (USBA0) [address 001216]
Bit symbol
Bit name
USBADD0 USB function address bit
[6:0]
b7
Not used
Fig. 33 Structure of USB function address register
Function
In AD0E = “0”, this value changes after writing.
At reset
RW
H/W S/W
0 0 OO
In AD0E = “1”, this value changes after completion of
SET_ADDRESS control transferring.
Write “0” when writing.
– – OO
“0” is read when reading.
–: State remaining
b7
b0
Frame number register Low (FNUML) [address 001416]
Bit symbol
Bit name
FNUM
[7:0]
Frame number low bit
Function
The frame number is updated at SOF reception.
At reset _{R W}
H/W S/W
In- In- O ✕
definite definite
Fig. 34 Structure of Frame number register Low
b7
0 0000
b0
Frame number register High (FNUMH) [address 001516]
Bit symbol
Bit name
FNUM
[10:8]
b7:b3
Frame number high bit
Not used
Fig. 35 Structure of Frame number register High
Function
The frame number is updated at SOF reception.
Write “0” when writing.
“0” is read when reading.
At reset _{R W}
H/W S/W
In- In- _{O ✕}
definite definite
–
– _OO
–: State remaining
Rev.3.00 Oct 05, 2006 page 33 of 129
REJ03B0192-0300