EM250-DEV Ember, EM250-DEV Datasheet - Page 79
![KIT DEV FOR EM250](/photos/14/10/141065/em250-jmp_sml.jpg)
EM250-DEV
Manufacturer Part Number
EM250-DEV
Description
KIT DEV FOR EM250
Manufacturer
Ember
Series
InSightr
Type
802.15.4/Zigbeer
Specifications of EM250-DEV
Frequency
2.4GHz
For Use With/related Products
EM250
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
636-1002
- Current page: 79 of 117
- Download datasheet (2Mb)
5.4
TMR1IB
TMR1IA
TMR1ENMSK
TMR1CLK
General Purpose Timers
Sync
Sync
32.768 kHz
12 MHz
1 kHz
The EM250 integrates two general-purpose, 16-bit timers—TMR1 and TMR2. Each of the two timers contains
the following features:
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
Glitch-
Glitch-
Filter
Filter
Configurable clock source
Counter load
Two output compare registers
Two input capture registers
Can be configured to do PWM
Up/down counting (for PWM motor drive phase correction)
Single shot operation mode (timer stops at zero or threshold)
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
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
120-0082-000I
Output
EM250
TMR1OB
TMR1OA
79
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