MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 41

• Manufacturer Part Number: MCIMX281AVM4B
• Description: IC MPU I.MX28 1.2 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

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

3.4.7
The i.MX28 GPMI controller is a flexible interface NAND Flash controller with 8-bit data width, up to
50MB/s I/O speed and individual chip select.
It supports normal timing mode, using two Flash clock cycles for one access of RE and WE. AC timings
are provided as multiplications of the clock cycle and fixed delay.
Figure 23
under normal mode.
Freescale Semiconductor
depict the relative timing between GPMI signals at the module level for different operations
General-Purpose Media Interface (GPMI) Timing
WE
CLE
CEn
WE
ALE
IO[7:0]
CEn
CLE
IO[7:0]
ALE
i.MX28 Applications Processors Data Sheet for Automotive Products, Rev. 0
Table 47
Figure 20. Command Latch Cycle Timing Diagram
Figure 21. Address Latch Cycle Timing Diagram
describes the timing parameters (NF1–NF17) that are shown in the figures.
NF6
NF6
NF3
NF3
NF1
NF1
Command
NF8
Address
NF5
NF8
NF5
NF10
NF4
NF9
NF7
NF9
NF7
NF11
NF2
Figure
NF4
20,
Figure
21,
Figure 22
and
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