HD6473032F Datasheet, PDF (546/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

IPRA—Interrupt Priority Register A
H'F8 Interrupt controller
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 A7 to A0
0 Priority level 0 (low priority)
1 Priority level 1 (high priority)
• Interrupt sources controlled by each bit
Interrupt
source
Bit 7
IPRA7
IRQ₀
Bit 6
IPRA6
IRQ₁
Bit 5
IPRA5
IRQ₂,
IRQ₃
Bit 4
IPRA4
IRQ₄
Bit 3
IPRA3
WDT
Bit 2
IPRA2
ITU
chan-
nel 0
Bit 1
IPRA1
ITU
chan-
nel 1
Bit 0
IPRA0
ITU
chan-
nel 2
IPRB—Interrupt Priority Register B
Bit
Initial value
Read/Write
7
6
5
IPRB7 IPRB6 —
0
0
0
R/W
R/W R/W
H'F9 Interrupt controller
4
3
2
1
0
—
IPRB3
—
IPRB1
—
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
Priority level B7, B6, B3, and B1
0 Priority level 0 (low priority)
1 Priority level 1 (high priority)
• Interrupt sources controlled by each bit
Bit 7
IPRB7
Interrupt ITU
source chan-
nel 3
Bit 6
IPRB6
ITU
chan-
nel 4
Bit 5
—
—
Bit 4
—
—
Bit 3
IPRB3
SCI
chan-
nel
Bit 2
—
—
Bit 1
IPRB1
A/D
con-
verter
Bit 0
—
—
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