MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 918

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

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

Programmable Registers
Address:
918
Reset
Reset
USE_VDDXTAL_
DOUBLE_FETS
LOWPWR_4P2
ENABLE_OSC
SELECT_OSC
HALF_FETS
PWD_ANA_
VBG_OFF
Bit
Bit
PWD_BO
W
W
RSRVD1
R
R
RSVD1
31 15
CMPS
Field
VBG
R S R V D 1
[15:15]
14
13
12
11
10
9
8
7
6
5
31
15
0
0
HW_POWER_MINPWR
30
14
0
0
Reserved.
Enable low power regulation of DCDC_4P2 limited to 2.5mA.
Program this field to 0x0.
Powers down supply brownout comparators. This should only be used when monitoring supply brownouts
is not needed.
Change the reference used in the dcdc converter to a low power, less accurate reference. This should only
be used when achieving minimum system power is more important than supply voltage accuracy.
Powers down analog comparators used in the power module, including the VDD and VDDA brownout
comparators, low power reference. This bit should only be set to reach absolute minimum system power
when running from the linear regulators and supply accuracy and VDDD/VDDA brownout detection is not
important.
Enables the internal oscillator. This oscillator is less accurate , but lower power than the 24 MHz xtal.
Switch internal 24 MHz clock reference to the less accurate internal oscillator. This bit should be set only
when accuracy of the 24 MHz clock is not important. The value of this bit should only be changed when
ENABLE_OSC=1 and PWD_XTAL24=0.
Powers down the bandgap reference. This should only be used in 5v-powered applications when absolute
minimum power is more important than supply voltage accuracy. USB_I_SUSPEND must be set before this
bit is set.
Approximately doubles the size of power transistors in DC-DC converter. This maybe be useful in high power
conditions.
Disable half the power transistors in DC-DC converter. This maybe be useful in low-power conditions when
the increased resistance of the power FETs is acceptable.
29
13
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
28
12
0
0
HW_POWER_MINPWR field descriptions
27
11
0
0
8004_4000h base + 20h offset = 8004_4020h
26
10
0
0
25
0
0
9
RSRVD1[31:16]
24
0
0
8
Description
VBG_
OFF
23
0
0
7
22
0
0
6
21
0
5
0
20
0
4
0
Freescale Semiconductor, Inc.
19
0
0
3
18
0
0
2
PFM
EN_
DC_
17
0
0
1
16
0
0
0