XE8806A SEMTECH [Semtech Corporation], XE8806A Datasheet - Page 52
XE8806A
Manufacturer Part Number
XE8806A
Description
Ultra Low-Power Low-Voltage
Manufacturer
SEMTECH [Semtech Corporation]
Datasheet
1.XE8806A.pdf
(143 pages)
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8.1
The XE8000 chips support 24 interrupt sources, divided into 3 levels of priority.
8.2
The interrupt handler allows 24 interrupt sources to be managed individually.
The 24 interrupt sources are divided into 3 levels of priority: High (8 interrupt sources), Mid (8 interrupt sources),
and Low (8 interrupt sources). Those 3 levels of priority are directly mapped to those supported by the CoolRisc®
(IN0, IN1 and IN2; see CoolRisc documentation for more information).
Additional functions are given that allow fast detection of the highest priority interrupt that has been activated.
8.3
© Semtech 2006
Features
Overview
Register map
7
6
5
4
3
2
1
0
pos.
RegIrqHig[7]
RegIrqHig[6]
RegIrqHig[5]
RegIrqHig[4]
RegIrqHig[3]
RegIrqHig[2]
RegIrqHig[1]
RegIrqHig[0]
RegIrqHig
r
c1
r
c1
r
c1
r
c1
r
c1
r
c1
r
c1
r
c1
rw
Table 8-1: IRQ handler registers
0 nresetglobal
0 nresetglobal
0 nresetglobal
0 nresetglobal
0 nresetglobal
0 nresetglobal
0 nresetglobal
0 nresetglobal
Register name
Table 8-2: RegIrqHig
RegIrqEnLow
RegIrqPriority
RegIrqEnMid
RegIrqEnHig
RegIrqLow
RegIrqMid
RegIrqHig
reset
RegIrqIrq
8-2
interrupt #23 (high priority)
clear interrupt #23 when 1 is written
interrupt #22 (high priority)
clear interrupt #22 when 1 is written
interrupt #21 (high priority)
clear interrupt #21 when 1 is written
interrupt #20 (high priority)
clear interrupt #20 when 1 is written
interrupt #19 (high priority)
clear interrupt #19 when 1 is written
interrupt #18 (high priority)
clear interrupt #18 when 1 is written
interrupt #17 (high priority)
clear interrupt #17 when 1 is written
interrupt #16 (high priority)
clear interrupt #16 when 1 is written
function
XE8806A/XE8807A
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