p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 125

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

5.6
The interrupt controller has two modes: interrupt control mode 0 and interrupt control mode 1.
Interrupt operations differ depending on the interrupt control mode. NMI and address break
interrupts are always accepted except for in the reset state or in hardware standby mode. The
interrupt control mode is selected by SYSCR. Table 5.4 shows the interrupt control modes.
Table 5.4
Interrupt
Control
Mode
0
1
Interrupt Control Modes and Interrupt Operation
INTM1
0
0
Interrupt Control Modes
SYSCR
INTM0
0
1
Priority
Setting
Registers
ICR
ICR
Interrupt
Mask Bits
I
I, UI
Description
Interrupt mask control is performed by
the I bit. Priority levels can be set with
ICR.
3-level interrupt mask control is
performed by the I and UI bits. Priority
levels can be set with ICR.
Rev. 1.00 Sep. 21, 2006 Page 87 of 658
Section 5 Interrupt Controller
REJ09B0310-0100