p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 119

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

5.3.4
The ISCR registers select the source that generates an interrupt request at pins IRQ7 to IRQ0.
• ISCRH
• ISCRL
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit Name
IRQ7SCB
IRQ7SCA
IRQ6SCB
IRQ6SCA
IRQ5SCB
IRQ5SCA
IRQ4SCB
IRQ4SCA
Bit Name
IRQ3SCB
IRQ3SCA
IRQ2SCB
IRQ2SCA
IRQ1SCB
IRQ1SCA
IRQ0SCB
IRQ0SCA
IRQ Sense Control Registers (ISCRH, ISCRL)
Initial Value
0
0
0
0
0
0
0
0
Initial Value
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
IRQn Sense Control B
IRQn Sense Control A
BA
00: Interrupt request generated at low level of IRQn
01: Interrupt request generated at falling edge of
10: Interrupt request generated at rising edge of
11: Interrupt request generated at both falling and
(n = 7 to 4)
Description
IRQn Sense Control B
IRQn Sense Control A
BA
00: Interrupt request generated at low level of IRQn
01: Interrupt request generated at falling edge of
10: Interrupt request generated at rising edge of
11: Interrupt request generated at both falling and
(n = 3 to 0)
input
IRQn input
IRQn input
rising edges of IRQn input
input
IRQn input
IRQn input
rising edges of IRQn input
Rev. 1.00 Sep. 21, 2006 Page 81 of 658
Section 5 Interrupt Controller
REJ09B0310-0100