XE8000EV101 Semtech, XE8000EV101 Datasheet - Page 83
XE8000EV101
Manufacturer Part Number
XE8000EV101
Description
EVAL BOARD FOR XE8801AMI027LF
Manufacturer
Semtech
Type
MCUr
Specifications of XE8000EV101
Contents
Fully Assembled Evaluation Board
For Use With/related Products
XE88LC01AMI027
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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15.5 Conditional edge detection 1
Condition 1 is satisfied when S0=1 at the falling edge of S1. The bit UsrtCond1 in RegUsrtCond1 is set when the
condition 1 is detected and the USRT interface is enabled (UsrtEnable=1). Condition 1 is asserted for both modes
(receiver and transmitter). The UsrtCond1 bit is read only and is cleared by all reset conditions and by writing any
data to its address.
Condition 1 occurrence also generates an interrupt on Irq_cond1.
15.6 Conditional edge detection 2
Condition 2 is satisfied when S0=1 at the rising edge of S1. The bit UsrtCond2 in RegUsrtCond2 is set when the
condition 2 is detected and the USRT interface is enabled. Condition 2 is asserted for both modes (receiver and
transmitter). The UsrtCond2 bit is read only and is cleared by all reset conditions and by writing any data to its
address.
Condition 2 occurrence also generates an interrupt on Irq_cond2.
15.7 Interrupts or polling
In receive mode, there are two possibilities to detect condition 1 or 2: the detection of the condition can generate
an interrupt or the registers can be polled (reading and checking the RegUsrtCond1 and RegUsrtCond2 registers
for the status of USRT communication).
© Semtech 2005
S1
S0
S1
S0
Figure 15-1: Condition 1
Figure 15-2: Condition 2
15-4
XE8801A – SX8801R
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