MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1304

• 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

Programmable Registers
16.6.15 Hardware BCH ECC Flash 3 Layout 1 Register
The flash format register contains a description of the logical layout of data on the flash
device. This register is used in conjuction with the FLASH3LAYOUT0 register to control
the format for the device selecting layout 3 in the LAYOUTSELECT register.
EXAMPLE
HW_BCH_FLASH3LAYOUT0_WR(0x020C8000);
HW_BCH_FLASH3LAYOUT1_WR(0x04408200);
Address:
Re-
1304
set
Bit
W
R
DATA0_SIZE
PAGE_SIZE
31
0
31 16
15 12
ECCN
Field
11 0
Field
30
0
29
0
HW_BCH_FLASH3LAYOUT1
(HW_BCH_FLASH3LAYOUT1)
28
1
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
0x9
0xA
Indicates the size of the data 0 block (in bytes) to be stored on the flash page. The data size MUST be a
multiple of four bytes. If set to zero, the first block will only contain metadata.
Indicates the total size of the flash page (in bytes). This should be set to the page size including spare area.
The page size is programmable to accomodate different flash configurations that may be available in the
future.
Indicates the ECC level for the subsequent blocks on the flash page (blocks 1-n). Subsequent blocks only
contain data (no metadata).
0x0
27
0
HW_BCH_FLASH3LAYOUT0 field descriptions (continued)
26
0
ECC2 — ECC 2 to be performed
ECC4 — ECC 4 to be performed
ECC6 — ECC 6 to be performed
ECC8 — ECC 8 to be performed
ECC10 — ECC 10 to be performed
ECC12 — ECC 12 to be performed
ECC14 — ECC 14 to be performed
ECC16 — ECC 16 to be performed
ECC18 — ECC 18 to be performed
ECC20 — ECC 20 to be performed
NONE — No ECC to be performed
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
PAGE_SIZE
HW_BCH_FLASH3LAYOUT1 field descriptions
24
0
23
1
22
1
21
0
20
8000_A000h base + F0h offset = 8000_A0F0h
1
19
1
18
0
17
1
16
0
15
1
Description
Description
ECCN
14
0
13
0
12
0
11
0
10
0
1
9
0
8
Freescale Semiconductor, Inc.
DATAN_SIZE
0
7
0
6
0
5
0
4
3
0
0
2
0
1
0
0