EM250-RCM-R Ember, EM250-RCM-R Datasheet - Page 80

• Manufacturer Part Number: EM250-RCM-R
• Description: EM250 RCM BOARD
• Manufacturer: Ember
• Type: Transceiver, 802.15.4/ZigBeer

Specifications of EM250-RCM-R

• Frequency: 2.4GHz
• For Use With/related Products: EM250
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 636-1023

EM250
120-0082-000S
Note: All configuration changes do not take effect until the next edge of the timer's clock source.
These functions are separately controlled for TMR1 and TMR2 by setting the bits
TMR_EDGE
5.4.2
Each timer supports three counting modes: increasing, decreasing, or alternating (where the counting will in-
crease, then decrease, then increase). These modes are controlled by setting the
bits within the
Upward counting continues until the counter value reaches the threshold value stored in the
TMR2_TOP
ternating counting mode is enabled, a triangular-shaped waveform of the count-value can be created. Figure
10 through Figure 13 illustrate the different counting modes available from the timers.
Counting can be enabled and disabled with the register bit
When the timer is disabled, the counter stops counting and maintains its count value. Enabling can be masked
with the pin TMR1ENMSK or TMR2ENMSK, depending on register bit
registers.
By default, the counting operation is repetitive. It can be restricted to single counting enabled with the regis-
ter bit
TMR_PSCL[3:0]
TMR_CLK[1:0]
TMR_EDGE
TMR_1SHOT
N = 11..15
Timer Functionality (Counting)
N = 0..10
, and
register. Downward counting continues until the counter value reaches the value zero. When the al-
0
1
2
3
0
1
TMR1_CFG
TMR_PSCL
located in the
or
in the timer registers
Clock Source
1 kHz RC clock
32.768kHz clock
12 MHz clock
GPIO clock input
Clock Source Prescale Factor
2
2
Clock Source
Rising
Falling
TMR2_CFG
N
10
Table 28. TMR1 and TMR2 Clock Source Settings
TMR1_CFG
Table 29. Clock Source Divider Settings
registers.
Table 30. Clock Edge Setting
or
Page 80
TMR2_CFG
TMR1_CFG
registers.
and
TMR_EN
TMR2_CFG
TMR_EXTEN
in the
, respectively.
TMR1_CFG
in the
TMR_CLK
TMR_DOWN
or
TMR1_CFG
TMR2_CFG
,
TMR_FILT
and
TMR1_TOP
or
TMR_BIDIR
registers.
TMR2_CFG
,
or