FlashFlex MCU
SST89E564RD / SST89V564RD
SST89E554RC / SST89V554RC
EOL Data Sheet
Interrupt Priority (IP)
Location
7
6
5
4
3
2
1
0
Reset Value
B8H
-
PPC
PT2
PS
PT1
PX1
PT0
PX0
x0000000b
Symbol
PPC
PT2
Function
PCA interrupt priority bit.
Timer 2 interrupt priority bit.
Serial Port interrupt priority bit.
Timer 1 interrupt priority bit.
External interrupt 1 priority bit.
Timer 0 interrupt priority bit.
External interrupt 0 priority bit.
PS
PT1
PX1
PT0
PX0
Interrupt Priority High (IPH)
Location
7
6
5
4
3
2
1
0
Reset Value
B7H
-
PPCH
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
x0000000b
Symbol
PPCH
PT2H
PSH
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.
PT1H
PX1H
PT0H
PX0H
Interrupt Priority A (IPA)
Location
7
6
5
4
3
2
1
0
Reset Value
F8H
-
-
-
-
PBO
-
-
-
xxxx0xxxb
Symbol
Function
PBO
Brown-out interrupt priority bit.
Interrupt Priority A High (IPAH)
Location
7
6
5
4
3
2
1
0
Reset Value
F7H
-
-
-
-
PBOH
-
-
-
xxxx0xxxb
Symbol
Function
PBOH
Brown-out Interrupt priority bit high.
©2007 Silicon Storage Technology, Inc.
S71207-08-EOL
1/07
25
SST [ SILICON STORAGE TECHNOLOGY, INC ]
