EM250-BBRD-R Ember, EM250-BBRD-R Datasheet - Page 79

• 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

TMR1IB
TMR1IA
TMR1ENMSK
TMR1CLK
Sync
Sync
32.768 kHz
12 MHz
1 kHz
Figure 9 is a block diagram of the Timer TMR1 module. Timer TMR2 is identical.
5.4.1
The clock source for each timer can be chosen from the main 12MHz clock, 32.768kHz clock, 1kHz RC-Clock,
or from an external source (up to 100kHz) through TMR1CLK or TMR2CLK. After choosing the clock source (see
Table 28), the frequency can be further divided to generate the final timer cycle provided to the timer con-
troller (see Table 29). In addition, the clock edge (either rising or falling) for this timer clock can be selected
(see Table 30).
Glitch-
Glitch-
Filter
Filter
TMR1_CAPCFGB
TMR1_CAPCFGA
00
01
10
11
Clock Sources
1
0
0
1
Glitch-
Edge-
detect
Edge-
detect
Filter
isCapB
isCapA
0
1
Edge-
detect
TMR1_CFG
Figure 9. Timer TMR1 Block Diagram
Scaler
TMR1_CAPB
TMR1_CAPA
Pre-
CPU Interrupt
Page 79
TMR1_CNT
Counter
0
AND
1
Counter Comparison
INT_TMRFLAG
INT_FLAG[13]
INT_TMRCFG
INT_CFG[13]
INT_EN
TMR1_CMPB
TMR1_CMPA
TMR1_TOP
zero
Generation
Output
Generation
TMR1_CMPCFGB
TMR1_CMPCFGA
Output
EM250
120-0082-000S
TMR1OB
TMR1OA