h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 131

• Manufacturer Part Number: h8s-2158
• Description: Renesas 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 IRQ15 to IRQ0 or
pins ExIRQ15 to ExIRQ2. Switching between pins IRQ15 to IRQ2 and pins ExIRQ15 to ExIRQ2
is performed by means of IRQ sense port select register 16 (ISSR16) and the IRQ sense port select
register (ISSR).
ISCR16H
ISCR16L
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit Name
IRQ15SCB
IRQ15SCA
IRQ14SCB
IRQ14SCA
IRQ13SCB
IRQ13SCA
IRQ12SCB
IRQ12SCA
Bit Name
IRQ11SCB
IRQ11SCA
IRQ10SCB
IRQ10SCA
IRQ9SCB
IRQ9SCA
IRQ8SCB
IRQ8SCA
IRQ Sense Control Registers (ISCR16H, ISCR16L, 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
00: Interrupt request generated at low level of
01: Interrupt request generated at falling edge
10: Interrupt request generated at rising edge
11: Interrupt request generated at both falling
(n = 15 to 12)
Description
IRQn Sense Control B
IRQn Sense Control A
00: Interrupt request generated at low level of
01: Interrupt request generated at falling edge
10: Interrupt request generated at rising edge
11: Interrupt request generated at both falling
(n = 11 to 8)
IRQn or ExIRQn input
of IRQn or ExIRQn input
of IRQn or ExIRQn input
and rising edges of IRQn or ExIRQn input
IRQn or ExIRQn input
of IRQn or ExIRQn input
of IRQn or ExIRQn input
and rising edges of IRQn or ExIRQn input
Rev. 3.00 Jan 25, 2006 page 79 of 872
Section 5 Interrupt Controller
REJ09B0286-0300