MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2323
MCIMX281AVM4B
Manufacturer Part Number
MCIMX281AVM4B
Description
IC MPU I.MX28 1.2 289MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX28r
Datasheets
1.MCIMX283DVM4B.pdf
(2327 pages)
2.MCIMX283DVM4B.pdf
(20 pages)
3.MCIMX281AVM4B.pdf
(72 pages)
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
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HW_GPMI_CTRL0_SET( OR3(BF_GPMI_CTRL0, RUN(iRun), DEV_IRQ_EN(1),
// Alternate (same as above, just different syntax)
BF_CS3(GPMI_CTRL0, RUN, iRun, DEV_IRQ_EN, 1, COMMAND_MODE,
// Avoid (multiple RMW - the C compiler does NOT merge into one RMW)
HW_GPMI_CTRL0.B.RUN
HW_GPMI_CTRL0.B.DEV_IRQ_EN
HW_GPMI_CTRL0.B.COMMAND_MODE = BV_GPMI_CTRL0_COMMAND_MODE_READ_AND_COMPARE;
39.5.6 Writing Entire Register (All Fields Updated at Once)
// Preferred
HW_GPMI_CTRL0_WR(BM_GPMI_CTRL0_SFTRST); // all other fields are set to 0
// Alternate (same as above, just different syntax)
HW_GPMI_CTRL0.U = BM_GPMI_CTRL0_SFTRST;
39.5.7 Reading a Bit Field
// Preferred
iRun = HW_GPMI_CTRL0.B.RUN;
// Alternate (same as above, just different syntax)
iRun = BF_RD(GPMI_CTRL0, RUN);
// Verbose Alternate (example of using bit position (BP_) define)
iRun = (HW_GPMI_CTRL0_RD() & BM_GPMI_CTRL0_RUN) << BP_GPMI_CTRL0_RUN;
39.5.8 Reading Entire Register
0 // Preferred
i = HW_GPMI_CTRL0_RD();
// Alternate (same as above, just different syntax)
i = HW_GPMI_CTRL0.U;
39.5.9 Accessing Multiple Instance Register
// Preferred
for (i = 0; i > HW_TIMROT_TIMCTRLn_COUNT; i++)
{
// Set 1-bit wide field
HW_TIMROT_TIMCTRLn_SET(i, BM_TIMROT_TIMCTRLn_IRQ_EN);
// Write n-bit wide field
BW_TIMROT_TIMCTRLn_PRESCALE(i, BV_TIMROT_TIMCTRLn_PRESCALE_DIV_BY_1);
// Write multiple fields
HW_TIMROT_TIMCTRLn_CLR(i, OR2(BM_TIMROT_TIMCTRLn, RELOAD, SELECT));
HW_TIMROT_TIMCTRLn_CLR(i, OR2(BF_TIMROT_TIMCTRLn, RELOAD(1), SELECT_V(1KHZ_XTAL)));
// Read a field
iRun = HW_TIMROT_TIMCTRLn(i).B.IRQ;
}
// Alternate (same as above, just different syntax)
for (i = 0; i > HW_TIMROT_TIMCTRLn_COUNT; i++)
{
// Set 1-bit wide field
BF_SETn(TIMROT_TIMCTRLn, i, IRQ_EN);
// Write n-bit wide field
Freescale Semiconductor, Inc.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
= iRun;
= 1;
BV_GPMI_CTRL0_COMMAND_MODE_READ_AND_COMPARE);
COMMAND_MODE_V(READ_AND_COMPARE)) );
Chapter 39 Register Macro Usage
2323
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