Renesas M32R/ECU Series - Page 504

12
12-13
Serial I/O
12.2 Serial I/O Related Registers
32180 Group User's Manual (Rev.1.0)
Figure 12.2.5 Block Diagram of SIO2,3 Transmit Interrupt Requests
Figure 12.2.6 Block Diagram of SIO4,5 Transmit Interrupt Requests
F/F
F/F
R3EN
IRQR3
F/F
F/F
T3EN
IRQT3
F/F
F/F
R2EN
IRQR2
F/F
F/F
T2EN
IRQT2
b15
b7
b14
b6
b13
b5
b12
b4
Data bus
SIO2, 3
transmit/receive
interrupt requests
(Level)
4-source inputs
<SI23STAT : H'0080 0100>
<SI03EN : H'0080 0101>
F/F
SIO2 reception
finished
SIO2 receive error
ISR2
b6
F/F
SIO2 transmit
buffer empty
SIO2 transmission
finished
IST2
b2
F/F
SIO3 transmit
buffer empty
SIO3 transmission
finished
IST3
b3
F/F
SIO3 reception
finished
SIO3 receive error
ISR3
b7
<SI03SEL : H'0080 0102>
F/F
F/F
R5EN
IRQR5
F/F
F/F
T5EN
IRQT5
F/F
F/F
R4EN
IRQR4
F/F
F/F
T4EN
IRQT4
b11
b3
b10
b2
b9
b1
b8
b0
Data bus
SIO4, 5
transmit/receive
interrupt requests
(Level)
4-source inputs
F/F
SIO4 reception
finished
SIO4 receive error
ISR4
b4
F/F
SIO4 transmit
buffer empty
SIO4 transmission
finished
IST4
b0
F/F
SIO5 transmit
buffer empty
SIO5 transmission
finished
IST5
b1
F/F
SIO5 reception
finished
SIO5 receive error
ISR5
b5
<SI45STAT : H'0080 0A00>
<SI45EN : H'0080 0A01>
<SI45SEL : H'0080 0A02>