MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1422
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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Operation
20.2 Operation
The APB interface of the OCOTP provides two functions:
The OTP is divided into 32-bit words (40 in total). All of the 40 words are memory-mapped
to APBH addresses (for reads only). Writes require the use of HW_OCOTP_CTRL_ADDR.
The high-level OTP allocation for i.MX28 is shown below.
1422
• Programmer-model access to registers (see
• Restricted 32-bit word write/program access to the 1.25 Kbit OTP.
These operations require a bank opening sequence through
HW_OCOTP_CTRL_RD_BANK_OPEN.
Figure 20-1. On-Chip OTP (OCOTP) Controller Block Diagram
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
APB Interface
HW/SW Capability, LOCK and
OTP Controller/State Machine
/
HW_OCOTP_DATA
HW_OCOTP_CTRL
ROM Shadow Regs
_
OCOTP
Programmable Registers
HW Capability Bus
Crypto Keys
Interface
Test /Pin
Blocks
DCP
To
All
Freescale Semiconductor, Inc.
for register details).
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