MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 911

• Manufacturer Part Number: MCIMX281AVM4B
• Description: IC MPU I.MX28 1.2 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

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

The VDDA_BO_IRQ, VDDD_BO_IRQ, VDDIO_BO_IRQ, and BATT_BO_IRQ each
have their own interrupt line back to the interrupt collector. However, the remaining five
interrupts VDD5V_GT_VDDIO_IRQ, DC_OK_IRQ, VBUSVALID_IRQ,
LINREG_OK_IRQ and PSWITCH_IRQ all share a single interrupt line. In this case,
software must read the interrupt status bits to discover which event caused the interrupt.
11.12 Programmable Registers
iMX28 POWER Hardware Register Format Summary
Freescale Semiconductor, Inc.
VDDD_BO_IRQ
VDDIO_BO_IRQ
BATT_BO_IRQ
VDD5V_GT_VDDIO_IRQ
DC_OK_IRQ
VBUSVALID_IRQ
LINREG_OK_IRQ
PSWITCH_IRQ
HW_POWER_CTRL INTERRUPT BIT
8004_4000
8004_4010
8004_4020
8004_4030
8004_4040
8004_4050
8004_4060
8004_4070
Absolute
address
(hex)
Power Control Register (HW_POWER_CTRL)
DC-DC 5V Control Register (HW_POWER_5VCTRL)
DC-DC Minimum Power and Miscellaneous Control Register
(HW_POWER_MINPWR)
Battery Charge Control Register (HW_POWER_CHARGE)
VDDD Supply Targets and Brownouts Control Register
(HW_POWER_VDDDCTRL)
VDDA Supply Targets and Brownouts Control Register
(HW_POWER_VDDACTRL)
VDDIO Supply Targets and Brownouts Control Register
(HW_POWER_VDDIOCTRL)
VDDMEM Supply Targets Control Register
(HW_POWER_VDDMEMCTRL)
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Register name
HW_POWER memory map
VDDD Brownout
VDDIO Brownout
Battery Brownout
VDD5V > (VDDIO + 0.6)
Voltage Supplies Ok after target voltage change
VDD5V > Vbusvalid Threshold
Debug use only
PSWITCH Status
Description
(in bits)
Width
32
32
32
32
32
32
32
32
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0000_270Ch
Reset value
0001_0024h
2010_0490h
0000_0000h
0001_0000h
0032_0710h
0000_2406h
0000_0230h
Chapter 11 Power Supply
11.12.1/912
11.12.2/915
11.12.3/917
11.12.4/919
11.12.5/921
11.12.6/923
11.12.7/924
11.12.8/926
Section/
page
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