SH7080 Datasheet, PDF (171/1644 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 6 Interrupt Controller (INTC)
6.3.3 IRQ Status register (IRQSR)
IRQSR is a 16-bit register that indicates the states of the external interrupt input pins IRQ0 to
IRQ7 and the status of interrupt request.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
IRQ7L IRQ6L IRQ5L IRQ4L IRQ3L IRQ2L IRQ1L IRQ0L IRQ7F IRQ6F IRQ5F IRQ4F IRQ3F IRQ2F IRQ1F IRQ0F
Initial value: *
*
*
*
*
*
*
*
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R R/W R/W R/W R/W R/W R/W R/W R/W
Note: * The initial value is 1 when the level on the corresponding IRQ pin is high, and 0 when the level on the pin is low.
Initial
Bit
Bit Name Value
R/W Description
15
IRQ7L
*
R
Indicates the state of pin IRQ7.
0: State of pin IRQ7 is low
1: State of pin IRQ7 is high
14
IRQ6L
*
R
Indicates the state of pin IRQ6.
0: State of pin IRQ6 is low
1: State of pin IRQ6 is high
13
IRQ5L
*
R
Indicates the state of pin IRQ5.
0: State of pin IRQ5 is low
1: State of pin IRQ5 is high
12
IRQ4L
*
R
Indicates the state of pin IRQ4.
0: State of pin IRQ4 is low
1: State of pin IRQ4 is high
11
IRQ3L
*
R
Indicates the state of pin IRQ3.
0: State of pin IRQ3 is low
1: State of pin IRQ3 is high
10
IRQ2L
*
R
Indicates the state of pin IRQ2.
0: State of pin IRQ2 is low
1: State of pin IRQ2 is high
9
IRQ1L
*
R
Indicates the state of pin IRQ1.
0: State of pin IRQ1 is low
1: State of pin IRQ1 is high
Rev. 3.00 May 17, 2007 Page 113 of 1582
REJ09B0181-0300