SST89V554RC-25-C-PI View Datasheet(PDF) - Silicon Storage Technology
Part Name
Description
MFG CO.
'SST89V554RC-25-C-PI' PDF : 62 Pages View PDF
FlashFlex51 MCU
SST89E564RD / SST89V564RD / SST89E554RC / SST89V554RC
Preliminary Specifications
Interrupt Priority (IP)
Location
7
B8H
-
6
5
4
3
2
1
PPC
PT2
PS
PT1
PX1
PT0
Symbol
PPC
PT2
PS
PT1
PX1
PT0
PX0
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.
Interrupt Priority High (IPH)
Location
7
B7H
-
6
PPCH
5
PT2H
4
PSH
3
PT1H
2
PX1H
1
PT0H
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 A (IPA)
Location
7
6
5
4
3
2
1
F8H
-
-
-
-
PBO
-
-
Symbol
PBO
Function
Brown-out interrupt priority bit.
Interrupt Priority A High (IPAH)
Location
7
6
5
4
3
2
1
F7H
-
-
-
-
PBOH
-
-
Symbol
PBOH
Function
Brown-out Interrupt priority bit high.
0
Reset Value
PX0
x0000000b
0
PX0H
Reset Value
x0000000b
0
Reset Value
-
xxxx0xxxb
0
Reset Value
-
xxxx0xxxb
©2001 Silicon Storage Technology, Inc.
19
S71207-00-000 9/01 555
Share Link: 
