MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2306

• 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

Programmable Registers
38.5.20 LRADC Battery Conversion Register
The LRADC battery conversion register provides access to the battery voltage scale
multiplier.
HW_LRADC_CONVERSION: 0x130
HW_LRADC_CONVERSION_SET: 0x134
HW_LRADC_CONVERSION_CLR: 0x138
HW_LRADC_CONVERSION_TOG: 0x13C
This register controls the voltage scaling multiplier which is used to multiply the LRADC
battery voltage by 29 divided by 512 for NiMH, battery voltage times 29 divided by 256
for dual NiMH and battery voltage times 29 divided by 128 for Lithium Ion batteries.
EXAMPLE
HW_LRADC_CONVERSION.AUTOMATIC = 1;
Address:
2306
Reset
TESTMODE
Bit
W
R
Field
0
31
0
HW_LRADC_CONVERSION
0130h
(HW_LRADC_CONVERSION)
30
0
Place the LRADC in a special test mode in which the analog section is free-running at its clock rate.
LRADC_CH7 result is continuously updated every N conversions from the analog source selected in CTRL2,
where N is determined by TESTMODE_COUNT.
0x0
0x1
29
0
HW_LRADC_DEBUG1 field descriptions (continued)
NORMAL — Normal operation.
TEST — Put it in test mode, i.e. continuously sample channel 7.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
28
0
27
0
RSRVD3
8005_0000h base + 130h offset = 8005_
26
0
25
0
24
0
Description
23
0
22
0
21
0
20
0
Freescale Semiconductor, Inc.
19
RSRVD2
0
18
0
17
FACTOR
0
SCALE_
16
0