xe8802 Semtech Corporation, xe8802 Datasheet - Page 65

• Manufacturer Part Number: xe8802
• Description: Data Acquisition Soc With 16+10 Bit Zoomingadc? Embedded Risc Controller And Lcd Driver
• Manufacturer: Semtech Corporation

The next steps are to clear the interrupt flag in the interrupt handler, to call the specific function for the identified
interrupt source and to clear the interrupt in the stat register. This code can be found in the file IRQSave0_xx.s.
Finally, the context and the PC have to be restored. This code can be found in the IRQComon_xx.s file.
© Semtech 2006
########################################################################
Irq_AC:
########################################################################
Irq_128Hz:
########################################################################
Irq_Spi:
…
ret_int0:
ret_int:
########################################################################
## Restore all registers and flags
########################################################################
########################################################################
## End of interrupt handlers
########################################################################
jump
jump
jump
jump
jump
jump
jump
jump
jump
jump
jump
jump
jump
jump
jump
move
calls Handle_Irq_AC
jump
move
calls Handle_Irq_128Hz
jump
move
calls Handle_Irq_Spi
jump
clrb
jump
move
move
move
move
move
move
move
move
move
move
move
move
rflag
move
reti
Irq_Pa1
Irq_Vld
Irq_1Hz
Irq_Pa4
Irq_Pa5
Irq_UsrtCond1
Irq_UsrtCond2
Irq_UartRx
Irq_UartTx
Irq_Cmpd
Irq_CntC
Irq_CntA
Irq_Spi
Irq_128Hz
Irq_AC
RegIrqHig, #0x80
ret_int0
RegIrqHig, #0x40
ret_int0
RegIrqHig, #0x20
ret_int0
stat, #2
ret_int
r3, (i3)+
r2, (i3)+
r1, (i3)+
r0, (i3)+
i2h, (i3)+
i2l, (i3)+
i1h, (i3)+
i1l, (i3)+
i0h, (i3)+
i0l, (i3)+
iph, (i3)+
ipl, (i3)+
(i3)+
a, (i3)+
XE8802 Sensing Machine Data Acquisition MCU
;
;
;
;
;
;
;
;
;
;
;
;
;
;
;
8-7
RegIrqPriority = 0x09
RegIrqPriority = 0x0A
RegIrqPriority = 0x0B
RegIrqPriority = 0x0C
RegIrqPriority = 0x0D
RegIrqPriority = 0x0E
RegIrqPriority = 0x0F
RegIrqPriority = 0x10
RegIrqPriority = 0x11
RegIrqPriority = 0x12
RegIrqPriority = 0x13
RegIrqPriority = 0x14
RegIrqPriority = 0x15
RegIrqPriority = 0x16
RegIrqPriority = 0x17
with ZoomingADC™ and LCD driver
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