71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
IP1.x
IP0.x
Priority Level
Level0 (lowest)
Level1
0
0
1
1
0
1
0
1
Level2
Level3 (highest)
Table 50: Priority Levels
External interrupt 0
Serial channel 1 interrupt
Timer 0 interrupt
External interrupt 2
External interrupt 1
External interrupt 3
Timer 1 interrupt
External interrupt 4
Serial channel 0 interrupt
External interrupt 5
External interrupt 6
Table 51: Interrupt Polling Sequence
Interrupt Sources and Vectors
Table 52 shows the interrupts with their associated flags and vector addresses.
Interrupt Request Flag
Description
External interrupt 0
Timer 0 interrupt
Interrupt Vector Address
IE0
TF0
0x0003
0x000B
0x0013
0x001B
0x0023
0x0083
0x004B
0x0053
0x005B
0x0063
0x006B
IE1
External interrupt 1
Timer 1 interrupt
TF1
RI0/TI0
RI1/TI1
IEX2
IEX3
IEX4
IEX5
IEX6
Serial channel 0 interrupt
Serial channel 1 interrupt
External interrupt 2
External interrupt 3
External interrupt 4
External interrupt 5
External interrupt 6
Table 52: Interrupt Vectors
V1.0
© 2005-2008 TERIDIAN Semiconductor Corporation
Page: 35 of 97
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