EM250-BBRD-R Ember, EM250-BBRD-R Datasheet - Page 87
EM250-BBRD-R
Manufacturer Part Number
EM250-BBRD-R
Description
EM250 BREAKOUT BOARD
Manufacturer
Ember
Type
Transceiver, 802.15.4r
Datasheet
1.EM250-RCM-R.pdf
(126 pages)
Specifications of EM250-BBRD-R
Frequency
2.4GHz
For Use With/related Products
EM250
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
636-1024
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5.4.4
There are two capture registers that store the timer count value on a trigger condition from GPIO signals. The
timer trigger signals TMR1IA and TMR1IB for Timer 1, and TMR2IA and TMR2IB for Timer 2 are provided by ex-
ternal signals routed to the GPIO pins.
These timer trigger signals are synchronized to the main 12MHz clock, passed to an optional glitch filter, and
followed by an edge detection circuitry.
These functions are controlled by software with the register bits
TMR1_CAPCFGA
All glitch filters consist of a flip-flop-driven, 4-bit shift register clocked with the main 12MHz clock.
TMR_CAPMOD[1:0]
Timer Functionality (Input Capture)
0
1
2
3
Figure 15. Timer Output Generation Mode Example—Alternating, Non-inverting
,
TMR1_CAPCFGB
Detection mode
Disabled
Rising Edge
Falling Edge
Either Edge
,
Table 32. GPIO/Timer Trigger Conditioning
TMR2_CAPCFGA
Page 87
, and
TMR2_CAPCFGB
TMR_CAPMOD[1:0]
registers.
, and
TMR_CAPFILT
EM250
120-0082-000S
in the
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