upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 132

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Cautions: 1. When switching from the external interrupt function (alternate function) to the
Remark:
132
Symbol
INTR3
R/W
(j) External interrupt rising edge specification register 3 (INTR3)
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 only in 16-bit units.
Figure 4-28: External Interrupt Rising Edge Specification Register 3 (INTR3) Format
INTR37
2. An on-chip circuit for eliminating noise through analog delay is provided for
R/W
For details on valid edge specification, refer to Table 4-6.
7
INTF3n
port function, edge detection may occur. Therefore, set the port mode after set-
ting INTF3 = INTR3 bit = 0.
external interrupt input.
0
0
1
1
R/W
6
0
R/W
5
0
INTR3n
Table 4-6: Valid Edge Specification
0
1
0
1
User’s Manual U16702EE3V2UD00
Chapter 4 Port Functions
R/W
4
0
No edge specified
Rising edge
Falling edge
Both edges
R/W
3
0
Valid Edge Specification (n = 1, 7)
R/W
2
0
INTR31
R/W
1
R/W
0
0
FFFFFC26H
Address
After reset
0000H