A Microchip Technology Company
FlashFlex MCU
SST89E54RD2A/RDA / SST89E58RD2A/RDA
Interrupt Priority High (IPH)
Location
7
B7H
-
6
PPCH
5
PT2H
4
PSH
3
PT1H
Symbol
PPCH
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
Function
PCA interrupt priority bit high
Timer 2 interrupt priority bit high
Serial Port interrupt priority bit high
Timer 1 interrupt priority bit high
External interrupt 1 priority bit high
Timer 0 interrupt priority bit high
External interrupt 0 priority bit high
Interrupt Priority 1 (IP1)
Location
7
6
5
4
3
F8H
1
-
-
1
PBO
Symbol
PBO
PX2
PX3
Function
Brown-out interrupt priority bit
External Interrupt 2 priority bit
External Interrupt 3 priority bit
Interrupt Priority 1 High (IP1H)
Location
7
6
5
4
3
F7H
1
-
-
1
PBOH
Symbol
PBOH
PX2H
PX3H
Function
Brown-out Interrupt priority bit high
External Interrupt 2 priority bit high
External Interrupt 3 priority bit high
Not Recommended for New Designs
2
PX1H
1
PT0H
0
Reset Value
PX0H x0000000b
2
1
PX3
PX2
0
Reset Value
1
1xx10001b
2
PX3H
1
PX2H
0
Reset Value
1
1xx10001b
©2011 Silicon Storage Technology, Inc.
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