38K0 Datasheet, PDF (41/133 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

38K0 Group
b7
b0
0
EP01 byte number register 0 (EP01BYT0) [address 001E16]
Bit symbol
Bit name
B0BYT01
[6:0]
IN : Transmit byte number bit
OUT : Receive byte number bit
b7
Not used
Function
At reset _{R W}
H/W S/W
Single buffer mode: Set the transmitting byte number. ^{0 –} O O
Double buffer mode : Set the transmitting byte number
of buffer 0.
Single buffer mode : The received byte number is ⁰
– O✕
automatically set.
Double buffer mode : The received byte number of buffer 0
is automatically set.
Write “0” when writing.
– – OO
“0” is read when reading.
–: State remaining
Fig. 51 Structure of EP01 byte number register 0
b7
b0
0
EP01 byte number register 1 (EP01BYT1) [address 001F16]
Bit symbol
Bit name
B1BYT01
[6:0]
IN : Transmit byte number bit
OUT : Receive byte number bit
b7
Not used
Function
At reset _{R W}
H/W S/W
Single buffer mode: These bits are invalid.
0 – OO
Double buffer mode : Set the transmitting byte number
of buffer 1.
Single buffer mode: These bits are invalid.
0 – O✕
Double buffer mode : The received byte number of buffer 1
is automatically set.
Write “0” when writing.
– – OO
“0” is read when reading.
–: State remaining
Fig. 52 Structure of EP01 byte number register 1
b7
b0
0
EP01 MAX. packet size register (EP01MAX) [address 0FEC16]
Bit symbol
Bit name
MXPS01
[6:0]
b7
Max. packet size bit
Not used
Function
IN : These bits are invalid.
OUT : Set the maximum packet size.
Write “0” when writing.
“0” is read when reading.
Fig. 53 Structure of EP01 MAX. packet size register
At reset
H/W S/W ^{R W}
0 – _OO
– – _OO
–: State remaining
Rev.3.00 Oct 05, 2006 page 41 of 129
REJ03B0192-0300