m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 280

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.15.5. Interrupts resolution circuit
(6) Interrupt resolution circuit
When two or more interrupts are generated simultaneously, this circuit selects the interrupt with the
highest priority level. Figure 2.15.5 shows the circuit that judges the interrupt priority level.
page 271 of 354
UART0/UART2 Bus collision detection,
UART1/UART3 Bus collision detection,
Processor interrupt priority level (IPL)
Priority level of each interrupt
UART2 transmission/NACK
UART3 transmission/NACK
Start/stop condition detection
Start/stop condition detection
Interrupt enable flag (I flag)
UART0 transmission/NACK
UART1 transmission/NACK
UART3 reception/ACK
UART2 reception/ACK
UART1 reception/ACK
UART0 reception/ACK
Key input interrupt
Vbus detection
/SSI0 transmission
/SSI1 transmission
A/D conversion
Watchdog timer
USB resume
/SSI1 reception
Address match
/SSI0 reception
USB reset
suspend
USB function
USB EP0
Timer A3
Timer A4
Timer A2
USB SOF
Timer A1
Timer A0
USB
INT2
DMA0
INT1
DMA3
DMA2
DMA1
INT0
Reset
DBC
NMI
Level 0 (initial value)
DMA0
High
Priority of peripheral I/O interrupts
(if priority levels are same)
Low
accepted
Interrupt
2. Multiple Interrupts
request