MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1506
MCIMX281AVM4B
Manufacturer Part Number
MCIMX281AVM4B
Description
IC MPU I.MX28 1.2 289MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX28r
Datasheets
1.MCIMX283DVM4B.pdf
(2327 pages)
2.MCIMX283DVM4B.pdf
(20 pages)
3.MCIMX281AVM4B.pdf
(72 pages)
Specifications of MCIMX281AVM4B
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
Supplier Unconfirmed
- Current page: 1506 of 2327
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Timer
In the duty cycle mode, Timer 3 samples the free-running counter at the rising and falling
edges of the input test signal, resetting the free-running counter on the same clock that is
sampled.
1506
• On the rising edge of the test signal, the free-running count is copied to the
• On the falling edge of the source clock, the free-running count is copied to the
• Once duty cycle mode is programmed and the input signal is stable, software should
• This bit is automatically set and cleared by the hardware. When this bit is set, count
LOW_RUNNING_COUNT bit field of the HW_TIMROT_TIMCOUNT3 register.
HIGH_FIXED_COUNT bit field (as shown in
poll the DUTY_VALID bit in the HW_TIMROT_TIMCTRL3 register.
values in the HW_TIMROT_TIMCOUNT3 register are stable and ready to be read.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
NEVER TICK
Figure 23-5. Pulse-Width Measurement Mode
ROTARY_B
ROTARY_A
ALWAYS TICK
PWM[0]
PWM[1]
PWM[2]
PWM[5]
PWM[3]
PWM[4]
PWM[6]
PWM[7]
32-kHz
Input
Input
Timer I/O
24-MHz
32-Bit Fixed count
XTAL
Osc.
Figure 23-4. Timer 3 Detail
32-Bit Low Count
Divide
by n
Hold, load,
Detect
Low Count
Edge
copy
APBX clk
Controller
Tick
Mode
Divide by
1, 2, 4, 8
High Count
Figure
Hold, down,
load, copy
LVL
32-Bit Running Count
Gated clk
23-5).
Freescale Semiconductor, Inc.
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