231
CHAPTER 19 INTERRUPT FUNCTIONS
(4) External interrupt rising edge enable register (EGP), external interrupt falling edge enable register (EGN)
These registers specify the valid edge for INTP0 to INTP2.
EGP and EGN are set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets these registers to 00H.
Figure 19-5. External Interrupt Rising Edge Enable Register (EGP),
External Interrupt Falling Edge Enable Register (EGN) Format
Address: FF48H After Reset: 00H R/W
Symbol
7
6
5
4
3
2
1
0
EGP
0
0
0
0
0
EGP2
EGP1
EGP0
Address: FF49H After Reset: 00H R/W
Symbol
7
6
5
4
3
2
1
0
EGN
0
0
0
0
0
EGN2
EGN1
EGN0
EGPn
EGNn
INTPn Pin Valid Edge Selection (n = 0 to 2)
0
0
Interrupt disable
0
1
Falling edge
1
0
Rising edge
1
1
Both rising and falling edges
Содержание mPD780973 Series
Страница 2: ...2 MEMO ...
Страница 66: ...66 MEMO ...
Страница 98: ...98 MEMO ...
Страница 138: ...138 MEMO ...
Страница 164: ...164 MEMO ...
Страница 182: ...182 MEMO ...
Страница 204: ...204 MEMO ...
Страница 244: ...244 MEMO ...
Страница 262: ...262 MEMO ...
Страница 278: ...278 MEMO ...
Страница 290: ...290 MEMO ...