External Interrupt Configuration Register; Table 9-30. Intconfig Register; Table 9-31. Intconfig Register Definitions - Sharp Blue Treak LH75400 User Manual

Reset, Clock, and Power Controller

9.3.2.13 External Interrupt Configuration Register

IntConfig is the External Interrupt Configuration Register. The active bits used in this reg-
ister are Read/Write.
This register configures the individual external interrupts to be either edge-sensitive or
level-sensitive and either active HIGH or active LOW. When reset, all bits are cleared and
configure the external interrupts to be active LOW-level sensitive. The corresponding
edge-trigger interrupt should be cleared before enabling the edge-trigger interrupt to
clear a false interrupt.
BIT
FIELD
RESET
RW
BIT
FIELD
RESET
RW
ADDR
BITS FIELD NAME
31:16
15:14
13:12
11:10
9:8
7:6
9-18

Table 9-30. IntConfig Register

31 30 29 28 27
0 0 0 0 0
R R R R R
15 14 13 12 11
/// INT6
0 0 0 0 0
R R RW RW RW

Table 9-31. IntConfig Register Definitions

/// Reserved Writing to these bits has no effect. Reading returns 0.
/// Reserved Read as 0, do not modify.
Configures External Interrupt INT6
00 = Configures INT6 to be a LOW-level trigger.
INT6
01 = Configures INT6 to be a HIGH-level trigger.
10 = Configures INT6 to be a falling-edge trigger.
11 = Configures INT6 to be a rising-edge trigger.
Configures External Interrupt INT5
00 = Configures INT5 to be a LOW-level trigger.
INT5
01 = Configures INT5 to be a HIGH-level trigger.
10 = Configures INT5 to be a falling-edge trigger.
11 = Configures INT5 to be a rising-edge trigger.
Configures External Interrupt INT4
00 = Configures INT4 to be a LOW-level trigger.
INT4
01 = Configures INT4 to be a HIGH-level trigger.
10 = Configures INT4 to be a falling-edge trigger.
11 = Configures INT4 to be a rising-edge trigger.
Configures External Interrupt INT3
00 = Configures INT3 to be a LOW-level trigger.
INT3
01 = Configures INT3 to be a HIGH-level trigger.
10 = Configures INT3 to be a falling-edge trigger.
11 = Configures INT3 to be a rising-edge trigger.
LH75400/01/10/11 (Preliminary) User's Guide
26 25 24 23
///
0 0 0 0
R R R R
10 9 8 7
INT5 INT4 INT3
0 0 0 1
RW RW RW RW
0xFFFE2000 + 0x80
DESCRIPTION
7/15/03
22 21 20 19 18
0 0 0 0 0
R R R R R
6 5 4 3 2
INT2 INT1
0 0 0 0 0
RW RW RW RW RW
17 16
0 0
R R
1 0
INT0
0 0
RW RW