MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1148
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)
Programmable Registers
14.8.43 DRAM Control Register 45 (HW_DRAM_CTL45)
This is a DRAM configuration register.
Address:
Re-
14.8.44 DRAM Control Register 48 (HW_DRAM_CTL48)
This is a DRAM configuration register.
Address:
1148
set
Reset
Reset
Bit
W
R
Bit
Bit
31
W
W
0
R
R
TXSNR
RSVD4
31 16
TXSR
Field
15 0
Field
RSVD4
RSVD2
31
30
0
31
15
0
0
29
0
HW_DRAM_CTL48
HW_DRAM_CTL45
28
0
30
14
0
0
DRAM TXSR parameter in cycles.
Defines the DRAM time from a self-refresh exit to a command that requires the memory DLL to be locked.
DRAM TXSNR parameter in cycles.
Defines the DRAM time from a self-refresh exit to a command that does not require the memory DLL to be
locked. (txs)
Always write zeroes to this field.
27
0
26
0
29
13
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
AXI0_CURRENT_BDW
TXSR
24
0
28
12
0
0
AXI0_BDW
23
0
HW_DRAM_CTL45 field descriptions
800E_0000h base + C0h offset = 800E_00C0h
HW_DRAM_CTL48 field descriptions
800E_0000h base + B4h offset = 800E_00B4h
22
0
27
11
0
0
21
0
20
0
26
10
0
0
19
0
18
25
0
0
0
9
17
0
16
24
0
0
0
8
15
0
Description
Description
23
14
0
0
0
7
13
0
22
12
0
0
6
0
11
0
21
0
5
0
10
RSVD1
0
RSVD3
0
9
TXSNR
20
0
4
0
0
8
Freescale Semiconductor, Inc.
0
7
19
0
0
3
0
6
0
5
18
0
0
2
0
4
3
0
AXI0_FIFO_
TYPE_REG
17
0
0
1
0
2
0
1
16
0
0
0
0
0
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