Interrupt Control Register (Intcr) - Renesas H8SX/1650 Hardware Manual

Section 5 Interrupt Controller
5.3.1

Interrupt Control Register (INTCR)

INTCR selects the interrupt control mode, and the detected edge for NMI.
Bit 7

Bit Name
Initial Value 0
R/W R
Bit Bit Name

7, 6
5 INTM1
4 INTM0
3 NMIEG

2 to 0
Rev.2.00 Jun. 28, 2007 Page 88 of 666
REJ09B0311-0200
6 5

INTM1
0 0
R R/W
Initial
Value R/W Description
All 0 R Reserved
These are read-only bits and cannot be modified.
0 R/W Interrupt Control Select Mode 1 and 0
0 R/W These bits select either of two interrupt control modes for
the interrupt controller.
00: Interrupt control mode 0
01: Setting prohibited.
10: Interrupt control mode 2
11: Setting prohibited.
0 R/W NMI Edge Select
Selects the input edge for the NMI pin.
0: Interrupt request generated at falling edge of NMI input
1: Interrupt request generated at rising edge of NMI input
All 0 R Reserved
These are read-only bits and cannot be modified.
4 3
INTM0 NMIEG
0 0
R/W R/W
Interrupts are controlled by I bit in CCR.
Interrupts are controlled by bits I2 to I0 in EXR, and
IPR.
2 1
 
0 0
R R
0

0
R