MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1187
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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- Download datasheet (17Mb)
Address:
Re-
14.8.93 DRAM Control Register 98 (HW_DRAM_CTL98)
This is a DRAM configuration register.
Address:
Re-
Freescale Semiconductor, Inc.
set
set
Bit
DLL_OBS_REG_
Bit
DLL_OBS_REG_
W
W
R
R
31
31
0
0
31 0
31 0
Field
Field
0_2
0_3
30
30
0
0
29
29
0
0
HW_DRAM_CTL97
HW_DRAM_CTL98
28
28
0
0
Reports the lock status and the encoder value for data slice 2. READ-ONLY
There is a separate dll_obs_reg_0_X parameter for each of the slices of data sent on the DFI data bus.
Bits [31:1] = Reports the DLL encoder value from the master DLL to the slave DLL's. The slaves use this
value to set up their delays for the clk_wr and read DQS signals.
Bit [0] = DLL Lock Indicator.
'b0 = DLL has not locked.
'b1 = DLL is locked.
Reports the lock status and the encoder value for data slice 3. READ-ONLY
There is a separate dll_obs_reg_0_X parameter for each of the slices of data sent on the DFI data bus.
Bits [31:1] = Reports the DLL encoder value from the master DLL to the slave DLL's. The slaves use this
value to set up their delays for the clk_wr and read DQS signals.
Bit [0] = DLL Lock Indicator.
'b0 = DLL has not locked.
'b1 = DLL is locked.
27
27
0
0
26
26
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
25
0
0
24
24
0
0
23
23
0
0
HW_DRAM_CTL97 field descriptions
HW_DRAM_CTL98 field descriptions
800E_0000h base + 184h offset = 800E_0184h
800E_0000h base + 188h offset = 800E_0188h
22
22
0
0
21
21
0
0
20
20
0
0
19
19
0
0
DLL_OBS_REG_0_2
DLL_OBS_REG_0_3
18
18
0
0
17
17
0
0
16
16
0
0
15
15
0
0
Description
Description
14
14
0
0
13
13
0
0
12
12
0
0
Chapter 14 External Memory Interface (EMI)
11
11
0
0
10
10
0
0
0
0
9
9
0
0
8
8
0
0
7
7
0
0
6
6
0
0
5
5
0
0
4
4
3
0
3
0
0
0
2
2
0
0
1
1
1187
0
0
0
0
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