38K0 Datasheet, PDF (48/133 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

38K0 Group
b7
b0
0 0 0 00 0 0
EP03 control register 2 (EP03CON2) [address 001B16]
Bit symbol
Bit name
B0VAL03 Buffer 0 enable bit
b7:b1
Not used
Fig. 66 Structure of EP03 control register 2
Function
At reset _{R W}
H/W S/W
When the selected endpoint is IN, writing “1” to this bit ^{0 – O O}
makes the transmitting data a set state (SIE is possible
to read).
When the selected endpoint is OUT, writing “1” to this
bit makes data reception possible (SIE is possible to
write).
Write “0” when writing.
– – OO
“0” is read when reading.
–: State remaining
b7
b0
0 0 0 0 0 0 0 EP03 control register 3 (EP03CON3) [address 001C16]
Bit symbol
Bit name
B1VAL03 Buffer 1 enable bit
b7:b1
Not used
Fig. 67 Structure of EP03 control register 3
Function
At reset _{R W}
H/W S/W
When the selected endpoint is IN, writing “1” to this bit ^{0 – O O}
makes the transmitting data a set state (SIE is possible
to read).
When the selected endpoint is OUT, writing “1” to this
bit makes data reception possible (SIE is possible to
write).
In double buffer mode this bit is valid.
Write “0” when writing.
– – OO
“0” is read when reading.
–: State remaining
b7
0000 0
b0
EP03 interrupt source register (EP03REQ) [address 001D16]
Bit symbol
B0RDY03
B1RDY03
ERR03
b7:b3
Bit name
Function
At reset _{R W}
H/W S/W
USB function/Endpoint 3 buffer 0 0 : No interrupt request issued
0 0 OO
ready interrupt bit
1 : Interrupt request issued
This bit is set to “1” when the buffer 0 is ready state
(enabled to be read/written) on USB function/Endpoint 3.
“0” can be set by software, but “1” cannot be set.
USB function/Endpoint 3 buffer 1 0 : No interrupt request issued
0 0 OO
ready interrupt bit
1 : Interrupt request issued
In single buffer mode this bit is invalid.
This bit is set to “1” when the buffer 1 is ready state
(enabled to be read/written) on USB function/Endpoint 3
in double buffer mode.
“0” can be set by software, but “1” cannot be set.
USB function/Endpoint 3 error 0 : No interrupt request issued
0 0 OO
interrupt bit
1 : Interrupt request issued
This bit is set to “1” when STALL response occurs on
USB function/Endpoint 3.
“0” can be set by software, but “1” cannot be set.
Not used
Write “0” when writing.
– – OO
“0” is read when reading.
Fig. 68 Structure of EP03 interrupt source register
Rev.3.00 Oct 05, 2006 page 48 of 129
REJ03B0192-0300