MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1117
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
- Current page: 1117 of 2327
- Download datasheet (17Mb)
14.8.10 DRAM Control Register 09 (HW_DRAM_CTL09)
This is a DRAM configuration register.
Address:
Re-
Freescale Semiconductor, Inc.
set
Bit
CONTROLLER_
W
R
REFRESH_IN_
CKE_STATUS
Q_ALMOST_
SREFRESH_
USER_DEF_
USER_DEF_
COMMAND_
REG_RO_0
ACCEPTED
REG_RO_1
PROCESS
31
0
BUSY
FULL
31 9
Field
Field
31 0
ACK
3 0
30
8
7
6
5
4
0
29
0
HW_DRAM_CTL09
28
0
User-defined input register 0.
Holds the value driven to the MC by the PHY on the signals param_user_def_reg_ro_X (where X ranges
from 0 to 7) at the EMI core level. There are a total of 8 user-defined input registers.
Status signal from the EMI. This will only be low when the EMI is not reading data, writing data or processing
a command.
Active-high signal that indicates that the EMI is executing a refresh command. This signals is asserted when
a refresh command is sent t othe DRAM devices and the remains asserted until the refresh command has
completed.
Indicates that the queue has reached the value set in the q_fullness parameter in the controller.
Acknowledge signal that indicates that the memory devices are in self-refresh mode. This signal will only
be asserted if the DRAMs have been placed into self-refresh mode through the assertion of the srefresh_enter
signal and if the signal is still held high until the memory enters self-refresh mode.
Indicates the memory devices are in either their self-refresh or power-down mode. This signals is the status
of the control_cke signal inside the EMI, but may be delayed through the cke_delay paramter in the contoller
to reflect the inverted CKE status on the memory bus. NOTE: this parameter is inverted with respect to the
logic state on the external CKE pin.
Indicates when bus interface commands are accepted.
User-defined input register 1.
Holds the value driven to the MC by the PHY on the signals param_user_def_reg_ro_X (where X ranges
from 0 to 7) at the EMI core level. There are a total of 8 user-defined input registers.
27
0
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
24
0
23
0
HW_DRAM_CTL08 field descriptions
HW_DRAM_CTL09 field descriptions
800E_0000h base + 24h offset = 800E_0024h
22
0
21
0
20
0
19
0
USER_DEF_REG_RO_1
18
0
17
0
16
0
15
0
Description
Description
14
0
13
0
12
0
Chapter 14 External Memory Interface (EMI)
11
0
10
0
0
9
0
8
0
7
0
6
0
5
0
4
3
0
0
2
0
1
1117
0
0
Related parts for MCIMX281AVM4B
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
MCU, MPU & DSP Development Tools MCIMX28LCD
Manufacturer:
Freescale Semiconductor
Datasheet:
Part Number:
Description:
MCIMX-LVDS1
Manufacturer:
Freescale Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: