Renesas RL78 Series User Manual page 685

RL78/G1D
18.2 Interrupt Sources and Configuration
Interrupt sources include maskable interrupts and software interrupts. In addition, they also have up to seven reset
sources (see Table 18-1). The vector codes that store the program start address when branching due to the generation of
a reset or various interrupt requests are two bytes each, so interrupts jump to a 64 K address of 00000H to 0FFFFH.
Interrupt
Type
Maskable
Notes 1. The default priority determines the sequence of interrupts if two or more maskable interrupts occur
simultaneously. Zero indicates the highest priority and 32 indicates the lowest priority.
2. Basic configuration types (A) to (D) correspond to (A) to (D) in Figure 18-1.
3. When bit 7 (WDTINT) of the option byte (000C0H) is set to 1.
4. When bit 7 (LVIMD) of the voltage detection level register (LVIS) is cleared to 0.
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
Table 18-1. Interrupt Source List (1/3)
Interrupt Source
Name
0 INTWDTI Watchdog timer interval
(75% of overflow time+1/2f
1 INTLVI Voltage detection
2 INTP0 Pin input edge detection 0
3 INTP3 Pin input edge detection 3
4 INTP5 Pin input edge detection 5
5 INTCSI20/ CSI20 transfer end or buffer
INTCSI20 empty interrupt/IIC20 transfer
end
6 INTCSI21 CSI21 transfer end or buffer
empty interrupt
7 INTDMA0 End of DMA0 transfer
8 INTDMA1 End of DMA1 transfer
9 INTST0/ UART0 transmission transfer
INTCSI00/ end or buffer empty
INTIIC00 interrupt/CSI00 transfer end or
buffer empty interrupt/IIC00
transfer end
10 INTSR0 UART0 reception transfer end
11 INTSRE0 UART0 reception communication
error occurrence
INTTM01H End of timer channel 01 count
or capture (at higher 8-bit timer
operation)
12 INTST1 UART1 transmission transfer
end or buffer empty interrupt
13 INTSR1 UART1 reception transfer end
CHAPTER 18 INTERRUPT FUNCTIONS
Internal/
External
Trigger
Note 3
Internal
)
IL
Note 4
External
Internal
Vector
Table
Address
0004H (A)
0006H
0008H (B)
000EH
0012H
0014H (A)
0016H
001AH
001CH
001EH
0020H
0022H
0024H
0026H
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