MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1134

• 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
14.8.29 DRAM Control Register 31 (HW_DRAM_CTL31)
This is a DRAM configuration register.
Address:
1134
Reset
Reset
MAX_ROW_REG
MAX_COL_REG
MAX_CS_REG
OBSOLETE
Bit
Bit
W
W
R
R
RSVD2
RSVD1
18 16
15 12
31 24
Field
11 8
Field
7 4
3 0
31
15
0
0
HW_DRAM_CTL31
30
14
0
0
Maximum number of chip selects available. READ-ONLY
Displays the maximum number of chip selects configured for this EMI. This parameter is read-only.
Always write zeroes to this field.
Maximum width of memory address bus. READ-ONLY
Defines the maximum width of the memory address bus for the EMI.
This value can be used to set the addr_pins parameter. This parameter is read-only.
addr_pins = max_row_reg - <number of row bits in memory device>.
Always write zeroes to this field.
Maximum width of column address in DRAMs. READ-ONLY
Defines the maximum width of column address in the DRAM devices. This value can be used to set the
column_size parameter. This parameter is read-only.
column_size = max_col_reg - <number of column bits in memory device>.
Always write zeroes to this field.
29
13
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
HW_DRAM_CTL30 field descriptions (continued)
RSVD2
OBSOLETE
28
12
0
0
800E_0000h base + 7Ch offset = 800E_007Ch
HW_DRAM_CTL31 field descriptions
27
11
0
0
26
10
0
0
25
0
0
9
24
0
0
8
Description
Description
23
0
0
7
22
0
0
6
21
0
5
0
RSVD3
RSVD1
20
0
4
0
Freescale Semiconductor, Inc.
19
0
0
3
18
0
0
2
17
0
0
1
16
0
0
0