upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 117

• 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:
Remark:
Symbol
INTR0
R/W
(h) External interrupt rising edge specification register 0 (INTR0)
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.
Figure 4-10: External Interrupt Rising Edge Specification Register 0 (INTR0) Format
2. An on-chip circuit for eliminating noise through analog delay is provided for
For details on valid edge specification, refer to Table 4-4, “Valid Edge Specification,” on
page 117.
n = 5: INTP2
n = 6: INTP3
R/W
7
0
INTF0n
port function, edge detection may occur. Therefore, set the port mode after set-
ting INTF0n = INTR0n bit = 0.
external interrupt input.
0
0
1
1
INTR06 INTR05
R/W
6
R/W
5
INTR0n
User’s Manual U16702EE3V2UD00
Table 4-4: Valid Edge Specification
0
1
0
1
Chapter 4 Port Functions
R/W
4
0
No edge specified
Rising edge
Falling edge
Both edges
R/W
3
0
R/W
2
0
Valid Edge Specification
R/W
1
0
R/W
0
0
FFFFFC20H
Address
After reset
00H
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