HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 148
HD6412240
Manufacturer Part Number
HD6412240
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412240.pdf
(818 pages)
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Section 5 Interrupt Controller
5.2
5.2.1
SYSCR is an 8-bit readable/writable register that selects the interrupt control mode, and the
detected edge for NMI.
Only bits 5 to 3 are described here; for details of the other bits, see section 3.2.2, System Control
Register (SYSCR).
SYSCR is initialized to H'01 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bits 5 and 4—Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select one of two
interrupt control modes for the interrupt controller.
Bit 3—NMI Edge Select (NMIEG): Selects the input edge for the NMI pin.
Bit 3
NMIEG
0
1
Rev.3.00 Mar. 26, 2007 Page 106 of 772
REJ09B0355-0300
Bit 5
INTM1
0
1
Bit
Initial value
R/W
Register Descriptions
System Control Register (SYSCR)
Bit 4
INTM0
0
1
0
1
Description
Interrupt request generated at falling edge of NMI input
Interrupt request generated at rising edge of NMI input
:
:
:
R/W
—
7
0
Interrupt
Control Mode
0
1
—
—
—
—
6
0
INTM1
R/W
Description
Interrupts are controlled by I bit
Interrupts are controlled by I and UI bits and ICR
Setting prohibited
Setting prohibited
5
0
INTM0
R/W
4
0
NMIEG
R/W
3
0
—
—
2
0
—
—
1
0
(Initial value)
(Initial value)
RAME
R/W
0
1
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