MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1507
MCIMX286CVM4B
Manufacturer Part Number
MCIMX286CVM4B
Description
IC MPU I.MX286 289MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX28r
Datasheets
1.MCIMX283DVM4B.pdf
(70 pages)
2.MCIMX283DVM4B.pdf
(2 pages)
3.MCIMX283DVM4B.pdf
(2327 pages)
4.MCIMX283DVM4B.pdf
(20 pages)
Specifications of MCIMX286CVM4B
Core Processor
ARM9
Core Size
32-Bit
Speed
454MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
Peripherals
DMA, I²S, LCD, POR, PWM, WDT
Program Memory Size
128KB (32K x 32)
Program Memory Type
Mask ROM
Ram Size
32K x 32
Voltage - Supply (vcc/vdd)
1.25 V ~ 5.25 V
Data Converters
A/D 17x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
289-LFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of I /o
-
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
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Refer to the Timer 3 control and status register, HW_TIMROT_TIMCTRL3, where the
DUTY_CYCLE bit controls whether HW_TIMROT_TIMCOUNT3 register's
LOW_RUNNING_COUNT bit field reads back the running count or the low count of a
duty cycle measurement. The DUTY_CYCLE bit also controls whether the
HIGH_FIXED_COUNT bit field reads back the fixed-count value used in normal timer
operations or the duty cycle high-time measurement.
It should be noted that for duty cycle mode to function properly, the timer tick source
selected (SELECT field of the HW_TIMROT_TIMCTRL3 register) should be an appropriate
frequency to sample the test signal. The NEVER_TICK value should never be used in this
mode, as it yields incorrect count results.
23.3 Rotary Decoder
The rotary decoder uses two input selectors and edge detectors, as shown in
It includes a debounce circuit for each input, as shown in
the debounce circuit for input A, though the circuit is identical for input B.
Freescale Semiconductor, Inc.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
ROTARY_A
ROTARY_B
NEVER TICK
PWM[0]
PWM[1]
PWM[2]
PWM[5]
PWM[3]
PWM[4]
PWM[6]
PWM[7]
Figure 23-6. Detail of Rotary Decoder
ROTARY_A
ROTARY_B
Signed 16-Bit Up/Down Count
NEVER TICK
PWM[0]
PWM[1]
PWM[2]
PWM[4]
PWM[5]
PWM[3]
PWM[6]
PWM[7]
Timer I/O
Hold, load,
inc/dec
SELA
ROT
Detect
Edge
SELB
ROT
Controller and
Detect
Edge
Debounce
Circuit
32-kHz
Mode
Input
Chapter 23 Timers and Rotary Decoder (TIMROT)
APBX Clock
Figure
23-7. This figure shows
Figure
23-6.
1507
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