MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 946

• 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
946
Reset
XTAL_BGR_BIAS
FASTSETTLING
VDDXTAL_TO_
RAISE_REF
BIAS_CTRL
LOW_PWR
VBG_ADJ
Bit
ADJ_ANA
ADJ_VAG
W
RSRVD5
RSRVD4
RSRVD3
RSRVD2
R
31 27
22 20
17 16
VDDD
Field
26
25
24
23
19
18
15
14
13
12
15
0
14
0
Reserved. Always write zeroes to this bit field.
Set to high to detect the existence of battery. After this bit is set to high, if no battery brownout is detected,
then the battery really exists. Reset this bit to low after complete detecting.
Reserved for Freescale Debugging Purposes Only
Switch the XTAL bias from self-bias to bandgap-based bias current. Also switches the source of the XTAL
supply to the core supply to save power. Note that this bit is not reset by the POWER's SFTRST bit. It is
reset by a power-on reset only, and CLKGATE has no effect on reads/writes.
Reserved. Always write zeroes to this bit field.
Small adjustment for VBG value. Will affect ALL reference voltages. Expected to be used to tweak final
Li-Ion charge voltage. 000=Nominal. 001=+0.3%. 010=+0.6%. 011=0.85%. 100=-0.3%. 101=-0.6%.
110=-0.9%. 111=-1.2%. Note that this bit is not reset by the POWER's SFTRST bit. It is reset by a power-on
reset only, and CLKGATE has no effect on reads/writes.
Lowers power (~100 uA) in the bandgap amplifier. This mode is useful in USB suspend or standby when
bandgap accuracy is not critical. Note that this bit is not reset by the POWER's SFTRST bit. It is reset by a
power-on reset only, and CLKGATE has no effect on reads/writes.
Reserved. Always write zeroes to this bit field.
Bias current control for all analog blocks: 00=Nominal. 01=-20%. 10=-10%. 11=+10%. Note that this bit not
reset by the POWER's SFTRST bit. It is reset by a power-on reset only, and CLKGATE has no effect on
reads/writes. These bits should only be used for test/debug, and not in an application.
Reserved. Always write zeroes to this bit field.
Shorts the supply of the XTAL oscillator to VDDD. This bit may be used to reduce power consumption, but
should only be used on the advice of Freescale.
Reserved for Freescale Debugging Purposes Only
Reserved for Freescale Debugging Purposes Only
ADJ_
ANA
13
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
ADJ_
VAG
12
0
HW_POWER_REFCTRL field descriptions
11
0
ANA_REFVAL
10
0
0
9
0
8
Description
0
7
VAG_VAL
0
6
5
0
4
0
Freescale Semiconductor, Inc.
0
3
RSRVD1
0
2
0
1
0
0