3069RF-ZTAT Datasheet, PDF (110/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Interrupt Priority Register A (IPRA): IPRA is an 8-bit readable/writable register in which
interrupt priority levels can be set.
Bit
Initial value
Read/Write
7
IPRA7
0
R/W
6
IPRA6
0
R/W
5
IPRA5
0
R/W
4
IPRA4
0
R/W
3
IPRA3
0
R/W
2
IPRA2
0
R/W
1
IPRA1
0
R/W
0
IPRA0
0
R/W
Priority
level A0
Selects the
priority level
of 16-bit timer
channel 2
interrupt
requests
Priority level A1
Selects the priority level
of 16-bit timer channel 1
interrupt requests
Priority level A2
Selects the priority level of
16-bit timer channel 0 interrupt
requests
Priority level A3
Selects the priority level of WDT,
DRAM interface, and A/D converter
interrupt requests
Priority level A4
Selects the priority level of IRQ₄ and IRQ ₅
interrupt requests
Priority level A5
Selects the priority level of IRQ₂ and IRQ₃ interrupt requests
Priority level A6
Selects the priority level of IRQ₁ interrupt requests
Priority level A7
Selects the priority level of IRQ ₀ interrupt requests
IPRA is initialized to H'00 by a reset and in hardware standby mode.
Rev. 5.0, 09/04, page 88 of 978