MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 924

• 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
11.12.7 VDDIO Supply Targets and Brownouts Control Register
This register controls the voltage targets and brownout targets for the VDDIO supply
generated from the switching DC-DC converter and integrated linear regulators. The
brownout comparators default enabled.
924
DISABLE_FET
BO_OFFSET
LINREG_
RSRVD3
RSRVD2
RSRVD1
OFFSET
15 14
13 12
Field
10 8
TRG
7 5
4 0
16
11
(HW_POWER_VDDIOCTRL)
Disable the VDDA switching converter output. The switching converter is enabled by default when the battery
is present or the ENABLE_DCDC is set.
Reserved.
Number of 25mV steps between linear regulator output voltage and switching converter target.
00b = 0 steps, recommended when powering VDDA from linear regulator and
ENABLE_DCDC=DCDC_XFER=0. It is also recommended to set DISABLE_STEPPING when powering
VDDA from the linear regulators.
01b = 1 step above.
10b = 1 step below (default), important when powering VDDA from DC-DC converter and linear regulator
simultaneously.
11b = 2 steps below.
Reserved.
Brownout voltage offset in 25mV steps below the TRG value. Note that the hardware only supports brownout
voltages between 1.4V and 2.175V, and values outside this range should not be programmed. The brownout
trip voltage will adjust as the target voltage changes.
Reserved.
Voltage level of the VDDA supply. The step size of this field is 25 mV. 0x00 = 1.5 V, 0x1F = 2.275 V, and
the reset value = 1.8 V. This field should not be set above the VDDA operating maximum voltage as specified
in the Datasheet. It is also recommended to set DISABLE_STEPPING when powering VDDA from the
integrated linear regulators. Setting DISABLE_STEPPING does set additional restrictions on TRG adjusments.
HW_POWER_VDDACTRL field descriptions (continued)
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Description
Freescale Semiconductor, Inc.