EM250-BBRD-R Ember, EM250-BBRD-R Datasheet - Page 87

• Manufacturer Part Number: EM250-BBRD-R
• Description: EM250 BREAKOUT BOARD
• Manufacturer: Ember
• Type: Transceiver, 802.15.4r

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

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