MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1492
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: 1492 of 2327
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Programmable Registers
22.8.7 Persistent State Register 0 (HW_RTC_PERSISTENT0)
The 32-bit persistent registers are used to retain certain control states during chip wide
power-down states.
HW_RTC_PERSISTENT0: 0x060
HW_RTC_PERSISTENT0_SET: 0x064
HW_RTC_PERSISTENT0_CLR: 0x068
HW_RTC_PERSISTENT0_TOG: 0x06C
The general persistent bits are available for software use. The register initalizes to a known
reset pattern. The copy controller overwrites the digital reset values very soon after power
on, but not in zero time.
EXAMPLE
oscillator as the source for the RTC analog clock
Address:
1492
Reset
the alarm event occurs
Bit
W
R
COUNT
Field
31 0
31
0
ADJ_POSLIMITBUCK
HW_RTC_PERSISTENT0
HW_RTC_PERSISTENT0_SET(BM_RTC_PERSISTENT0_ALARM_WAKE_EN); // wake up the chip if
HW_RTC_PERSISTENT0_SET(BM_RTC_PERSISTENT0_CLOCKSOURCE);
30
0
If the watchdog timer decrements to zero and the watchdog timer reset is enabled, then the chip will be
reset.
The watchdog timer decrements once per millisecond, when enabled.
29
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
28
0
HW_RTC_WATCHDOG field descriptions
27
0
8005_6000h base + 60h offset = 8005_6060h
26
0
25
0
RSVD1
24
0
Description
23
0
22
0
21
0
20
0
// select the 32KHz
Freescale Semiconductor, Inc.
19
0
18
0
17
0
16
0
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