73S1209F Data Sheet
DS_1209F_004
Interrupt Priority 1 Register (IP1): 0xB9 Å 0x00
Table 29: The IP1 Register
MSB
LSB
IP1.0
–
–
IP1.5
IP1.4
IP1.3
IP1.2
IP1.1
Table 30: Priority Levels
IP0.x Priority Level
IP1.x
0
0
1
1
0
Level0 (lowest)
Level1
1
0
1
Level2
Level3 (highest)
Table 31: Interrupt Polling Sequence
External interrupt 0
Serial channel 1 interrupt
Timer 0 interrupt
External interrupt 2
External interrupt 1
External interrupt 3
Timer 1 interrupt
Serial channel 0 interrupt
External interrupt 4
External interrupt 5
External interrupt 6
1.7.3.6 Interrupt Sources and Vectors
Table 32 shows the interrupts with their associated flags and vector addresses.
Table 32: Interrupt Vectors
Interrupt Request Flag Description
Interrupt Vector Address
0x0000
N/A
Chip Reset
IE0
External interrupt 0
Timer 0 interrupt
0x0003
TF0
0x000B
IE1
External interrupt 1
Timer 1 interrupt
0x0013
TF1
0x001B
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
0x0023
0x0083
0x004B
0x0053
0x005B
0x0063
0x006B
38
Rev. 1.2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
