XE8000EV104 Semtech, XE8000EV104 Datasheet - Page 61
XE8000EV104
Manufacturer Part Number
XE8000EV104
Description
EVAL BOARD FOR XE8805AMI028LF
Manufacturer
Semtech
Type
MCUr
Specifications of XE8000EV104
Contents
Fully Assembled Evaluation Board
For Use With/related Products
XE88LC05AMI028
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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11.1 Features
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11.2 Overview
Port A is a general purpose 8 bit wide digital input port, with interrupt capability. Figure 11-1 shows its structure.
© Semtech 2006
Input port, 8 bits wide
Each bit can be set individually for debounced or direct input
Each bit can be set individually for pull-up or not
Each bit is an interrupt request source on the rising or falling edge
A system reset can be generated on an input pattern
PA[0] and PA[1] can generate two events for the CPU, individually maskable
PA[0] to PA[3] can be used as clock inputs for the counters/timers/PWM (product dependent)
PA[0] can be used to enable the RC oscillator
VBat
8
8
1
0
8x
debounce
1
Port A
11
10
01
00
Figure 11-1:structure of Port A
0
8x
DebFast
(RegSysMisc(2))
PAReset[x]
0
1
11-2
8
8
1
0
8x
8
8
8
8
RegPADebounce
RegPAPullup
RegPAEdge
RegPARes1
RegPARes0
RegPACtrl
RegPAIn
resetfromporta
RC
interrupts
events
cntclocks
256 Hz
8 kHz
XE8805/05A
www.semtech.com
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