HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 116

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

Section 3 MCU Operating Modes
Bit 6—Reserved: Read-only bit, always read as 0.
Bits 5 and 4—Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select the control
mode of the interrupt controller. For details of the interrupt control modes, see section 5.4.1,
Interrupt Control Modes and Interrupt Operation.
Bit 3—NMI Edge Select (NMIEG): Selects the valid edge of the NMI interrupt input.
Bit 3
NMIEG
0
1
Bits 2 and 1—Reserved: Read-only bits, always read as 0.
Bit 0—RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is
initialized when the reset status is released. It is not initialized in software standby mode.
Bit 0
RAME
0
1
Note: When the DTC is used, the RAME bit should not be cleared to 0.
Rev.3.00 Mar. 26, 2007 Page 74 of 772
REJ09B0355-0300
Bit 5
INTM1
0
1
Description
An interrupt is requested at the falling edge of NMI input
An interrupt is requested at the rising edge of NMI input
Description
On-chip RAM is disabled
On-chip RAM is enabled
Bit 4
INTM0
0
1
0
1
Interrupt
Control Mode
0
1
—
—
Description
Control of interrupts by I bit
Control of interrupts by I bit, U bit, and ICR
Setting prohibited
Setting prohibited
(Initial value)
(Initial value)
(Initial value)