UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 236

• Manufacturer Part Number: UPD78F9418AGK-9EU
• Manufacturer: Renesas Electronics America

Specifications of UPD78F9418AGK-9EU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

234
Symbol
INTM0
(3)
Cautions 1. Bits 0 and 1 must be fixed to 0.
External interrupt mode register 0 (INTM0)
This register is used to specify a valid edge for INTP0 to INTP2.
INTM0 is set using an 8-bit memory manipulation instruction.
RESET input sets INTM0 to 00H.
ES21 ES20 ES11 ES10 ES01 ES00
ES21
ES01
ES11 ES10
7
1
0
0
1
1
0
0
1
1
0
0
1
2. Before setting the INTM0 register, be sure to set xxMKx of the relevant interrupt mask flag to
1 to disable interrupts.
interrupts after clearing the interrupt request flag (xxIFx = 0).
ES20
ES00
0
1
0
1
0
1
0
1
0
1
0
1
6
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
5
Figure 15-4. Format of External Interrupt Mode Register 0
4
CHAPTER 15 INTERRUPT FUNCTIONS
3
User’s Manual U13952EJ3V1UD
2
After that, clear the interrupt mask flag (xxMKx = 0) to enable
1
0
INTP2 valid edge selection
INTP1 valid edge selection
INTP0 valid edge selection
0
0
Address
FFECH
After reset
00H
R/W
R/W