HD6473032F16 Datasheet, PDF (114/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 5 Interrupt Controller
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 ITU
channel 2
interrupt
requests
Priority level A1
Selects the priority level
of ITU channel 1
interrupt requests
Priority level A2
Selects the priority level of
ITU channel 0 interrupt requests
Priority level A3
Selects the priority level of WDT and
refresh controller 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. 3.00 Mar 21, 2006 page 84 of 814
REJ09B0302-0300