M38002M4 Datasheet, PDF (74/173 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.3 Serial I/O
Baud rate generator
b7 b6 b5 b4 b3 b2 b1 b0
Baud rate generator (BRG) [Address : 1C16]
B
Function
0 A count value of Baud rate generator is set.
1
2
3
4
5
6
7
Fig. 2.3.6 Structure of Baud rate generator
At reset _{R W}
?
?
?
?
?
?
?
?
Interrupt edge selection register
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt edge selection register (INTEDGE) [Address : 3A16]
B
Name
Function
0 INT0 interrupt edge
selection bit
0 : Falling edge active
1 : Rising edge active
1 ^{INT1 interrupt edge}
selection bit
0 : Falling edge active
1 : Rising edge active
2 INT2 interrupt edge
selection bit
0 : Falling edge active
1 : Rising edge active
3 INT3 interrupt edge
selection bit
0 : Falling edge active
1 : Rising edge active
4 INT4 interrupt edge
selection bit
0 : Falling edge active
1 : Rising edge active
5 INT5 interrupt edge
selection bit
0 : Falling edge active
1 : Rising edge active
6 Nothing is allocated for these bits. These are write disabled
7 ^{bits. When these bits are read out, the values are “0.”}
At reset _{R W}
0
0
0
0
0
0
0
5
0
5
Fig. 2.3.7 Structure of Interrupt edge selection register
2-26
3800 GROUP USER’S MANUAL