Table 4-5: Valid Edge Specification - NEC V850E/RS1 User Manual

(j) External interrupt rising edge specification register 1 (INTR1)
This is an 8-bit register used to specify detection of the rising edge for the external interrupt pin.
This register can be read and written in 8-bit or 1-bit units.
Cautions: 1. When switching from the external interrupt function (alternate function) to the
Symbol
INTR1
R/W
Remark:
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port function, edge detection may occur. Therefore, set the port mode after set-
ting INTF10 = INTR10 bit = 0.
2. An on-chip circuit for eliminating noise through analog delay is provided for
external interrupt input.
Figure 4-19: External Interrupt Rising Edge Specification Register 1 (INTR1) Format
7 6 5
0 0 0
R/W R/W R/W
For details on valid edge specification, refer to Table 4-5, "Valid Edge Specification," on
page 123.

Table 4-5: Valid Edge Specification

INTF10 INTR10
0 0
0 1
1 0
1 1
User's Manual U16702EE3V2UD00
Chapter 4 Port Functions
4 3 2
0 0 0
R/W R/W R/W R/W
Valid Edge Specification
No edge specified
Rising edge
Falling edge
Both edges
1 0 Address After reset
0 INTR10 FFFFFC22H
R/W
00H
123