MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 963
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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// Multi Write Data Command
//
// Creates Write Data Command header which performs writes to multiple taget
// addresses
//
// inputs: flags - DCD command flags
//
//
#define MULTI_WRT_DAT(flags, bytes, number)
// DCD Table definition
uint8_t input_dcd[] = {
//void POWER_Init(void) just pick one register since no impact on RTL
//
WRT_DAT(0, HAB_DATA_WIDTH_WORD, 0x800440b4, 0x00003000),
// PLL already turn on by ROM
// HW_CLKCTRL_FRAC0_CLR(BM_CLKCTRL_FRAC0_CLKGATEEMI);
// Turn on fractional clock control 0 EMI clkgate,
// setmem /32 0x800401b8=0x00008000
WRT_DAT(0, HAB_DATA_WIDTH_WORD, 0x800401b8, 0x00008000),
// Set up the EMI clock
//
//
//
//
// Write the PLL fractional divider W_CLKCTRL_FRAC0_WR(frac_val);
// Clear the EMI frac first
WRT_DAT(0, HAB_DATA_WIDTH_WORD, 0x800401b8, 0x00003F00),
// write new_pll_frac_div
WRT_DAT(0, HAB_DATA_WIDTH_WORD, 0x800401b4, 29 << 8),
// init_dram_regs(); // Write the Databahn SDRAM setup register values
// use mobile_ddr_mt46h32m16lf_5_150MHz_for_dcd.c -- for 150MHz mDDR, 63 entries
MULTI_WRT_DAT(0, HAB_DATA_WIDTH_WORD, 63),
//
EXPAND_UINT32(0x800e0000 + 0 * 4), EXPAND_UINT32(0x00000000),
//
//000_00001 tccd(RW) 0000_0011 trp_ab(RW)
//0000_0001 cksrx(RW) 0000_0001 cksre(RW)
EXPAND_UINT32(0x800e0000 + 177 * 4), EXPAND_UINT32(0x01030101),
//
//0_0100001 axi5_bdw(RW) 0_0000000 axi4_current_bdw(RD)
//0_0100001 axi4_bdw(RW) 000_00001 tckesr(RW)
EXPAND_UINT32(0x800e0000 + 178 * 4), EXPAND_UINT32(0x01001901),
//
//0_000000000110010 mr0_data_1(RW) 0_000000000110010 mr0_data_0(RW)
Freescale Semiconductor, Inc.
HDR(HAB_CMD_WRT_DAT, (number * 2 + 1) * 4, WRT_DAT_PAR((flags), (bytes)))
/* DCD header */
DCD_HDR(HDR_BYTES + 26 * WRT_DAT_BYTES + (63 * 2 + 1) * 4, HAB_VER(4,0)),
HW_POWER_LOOPCTRL.B.EN_RCSCALE = 3;
DRAM_REG[0] =
DRAM_REG[177] =
DRAM_REG[178] =
DRAM_REG[181] =
case EMI_CLK_150MHz:
bytes - size of write by command (1, 2, or 4)
number - number of writes performed by the DCD write data command
use_xtal_src = 0;
new_pll_frac_div = 29;
new_pll_int_div = 2;
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
0x00000000;
0x01030101;
0x01001901;
0x00320032;
.
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\
Chapter 12 Boot Modes
963
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