FlashFlex MCU
SST89E516RD2 / SST89E516RD
SST89V516RD2 / SST89V516RD
Data Sheet
External Interrupt Control (XICON)
Location
7
6
5
4
3
2
1
0
Reset Value
AEH
-
EX3
IE3
IT3
0
EX2
IE2
IT2
00H
Symbol
Function
EX2
External Interrupt 2
Enable bit if set
IE2
Interrupt Enable
If IT2=1, IE2 is set/cleared automatically by hardware when interrupt is detected/
serviced.
IT2
External Interrupt 2 is falling-edge/low-level triggered when this bit is cleared by
software.
EX3
IE3
External Interrupt 3
Enable bit if set
Interrupt Enable
If IT3=1, IE3 is set/cleared automatically by hardware when interrupt is detected/
serviced.
IT3
External Interrupt3 is falling-edge/low-level triggered when this bit is cleared by
software.
©2007 Silicon Storage Technology, Inc.
S71273-03-000
1/07
33
SST [ SILICON STORAGE TECHNOLOGY, INC ]
