UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 527

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

Caution Valid edge detection cannot be performed when the valid edge is changed by a write to the external
INTM1
interrupt mode register (INTMn: n = 0, 1). Also, if an edge is input during a change of the valid edge,
that edge may or may not be judged to be a valid edge.
7
0
6
0
Figure 19-2 External Interrupt Mode Register 1 (INTM1) Format
ES51
5
ES50
CHAPTER 19 EDGE DETECTION FUNCTION
4
ES41
3
ES40
2
ES31
1
ES30
0
ES31
ES41
ES51
0FFA1H
Address
0
0
1
1
0
0
1
1
0
0
1
1
ES30
ES40
ES50
0
1
0
1
0
1
0
1
0
1
0
1
On Reset
P24 (INTP3, CR02 Capture Trigger,
TM0 Count Clock) Pin Input
Detected Edge Specification
Setting prohibited
Both falling & rising edges
P25 (INTP4) Pin Input Detected
Edge Specification
Setting prohibited
Both falling & rising edges
P26 (INTP5, A/D Conversion Start
Signal) Pin Input Detected Edge
Specification
Setting prohibited
Both falling & rising edges
Falling edge
Rising edge
Falling edge
Rising edge
Falling edge
Rising edge
00H
R/W
R/W
487