h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 161
h8s-2138
Manufacturer Part Number
h8s-2138
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2138.pdf
(1061 pages)
- Current page: 161 of 1061
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ISCRH and ISCRL are 8-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.
Each of the ISCR registers is initialized to H'00 by a reset and in hardware standby mode.
ISCRH Bits 7 to 0, ISCRL Bits 7 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.
Bits 7 to 0—IRQ7 to IRQ0 Flags (IRQ7F to IRQ0F): These bits indicate the status of IRQ7 to
IRQ0 interrupt requests.
IRQ7SCB to
IRQ0SCB
0
1
Bit
Initial value
Read/Write
Note: * Only 0 can be written, to clear the flag.
ISCRH Bits 7 to 0
ISCRL Bits 7 to 0
IRQ Status Register (ISR)
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. 4.00 Jun 06, 2006 page 107 of 1004
R/(W) *
IRQ3F
3
0
R/(W) *
IRQ2F
Section 5 Interrupt Controller
2
0
R/(W) *
IRQ1F
REJ09B0301-0400
1
0
(Initial value)
R/(W) *
IRQ0F
0
0
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