MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 351

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• 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: Compliant

Figure 6-3. AHB-to-APBH Bridge DMA NAND Read Status Polling with DMA Sense Command
The example in the above figure shows the workload continuing immediately to the next
NAND page transfer. However, one could perform a second sense operation to see if an
error has occurred after the write. One could then point the sense command alternate branch
at a NO_DMA_XFER command with the interrupt bit set. If the CHAIN bit is not set on
this failure branch, then the CPU is interrupted immediately, and the channel process is also
immediately terminated in the presence of a workload-detected NAND error bit.
Freescale Semiconductor, Inc.
1 PIO, chaining, DMA read
512-Byte
Block
NAND0=write mode
Data
BUFFER ADDRESS
512
NEXTCMD_ADDR
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
16-Byte
Spare
1
Area
BUFFER ADDRESS
NEXTCMD_ADDR
16
0
0
No PIO, chaining
1
10
DMA read
1 PIO, chaining, DMA read
0
512-Byte
NAND0=write mode
Block
Data
BUFFER ADDRESS
512
NEXTCMD_ADDR
0
0
Chapter 6 AHB-to-APBH Bridge with DMA (APBH-Bridge-DMA)
1
10
16-Byte
Spare
1
Area
NEXTCMD_ADDR=0
BUFFER ADDRESS
1 PIO, chaining, no DMA, Check
16
NAND status & set sense line
0
NAND0= check status
0
No PIO, chaining, no DMA,
conditional branch based
1
BUFFER ADDRESS
NEXTCMD_ADDR
10
0
BUFFER ADDRESS
0
NEXTCMD_ADDR
on sense line
0
No PIO,IRQ,
no chaining,
DMA read
0
1
1
0
0
10
0
0
1
0
00
0
1
11
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