HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 151

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

The ISCR registers are 16-bit readable/writable registers that select rising edge, falling edge, or
both edge detection, or level sensing, for the input at pins IRQ7 to IRQ0.
The ISCR registers are initialized to H'0000 by a reset and in hardware standby mode.
Bits 15 to 0: IRQ7 Sense Control A and B (IRQ7SCA, IRQ7SCB) to IRQ0 Sense Control A and
B (IRQ0SCA, IRQ0SCB)
5.2.5
ISR is an 8-bit readable/writable register that indicates the status of IRQ7 to IRQ0 interrupt
requests.
ISR is initialized to H'00 by a reset and in hardware standby mode.
IRQ7SCB to
IRQ0SCB
0
1
Bit
Initial value
R/W
Note: * Only 0 can be written, to clear the flag.
IRQ Status Register (ISR)
Bits 15 to 0
:
:
:
IRQ7SCA to
IRQ0SCA
0
1
0
1
R/(W)*
IRQ7F
7
0
R/(W)*
IRQ6F
6
0
Description
Interrupt request generated at IRQ7 to IRQ0 input low level
Interrupt request generated at falling edge of IRQ7 to IRQ0 input
Interrupt request generated at rising edge of IRQ7 to IRQ0 input
Interrupt request generated at both falling and rising edges of
IRQ7 to IRQ0 input
R/(W)*
IRQ5F
5
0
R/(W)*
IRQ4F
4
0
Rev.3.00 Mar. 26, 2007 Page 109 of 772
R/(W)*
IRQ3F
3
0
R/(W)*
IRQ2F
Section 5 Interrupt Controller
2
0
R/(W)*
IRQ1F
REJ09B0355-0300
1
0
(initial value)
R/(W)*
IRQ0F
0
0