MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1172

• 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

Programmable Registers
14.8.73 DRAM Control Register 78 (HW_DRAM_CTL78)
This is a DRAM configuration register.
Address:
Re-
14.8.74 DRAM Control Register 79 (HW_DRAM_CTL79)
This is a DRAM configuration register.
Address:
Re-
1172
set
set
Bit
Bit
W
W
R
R
PHY_CTRL_
PHY_CTRL_
PHY_CTRL_
REG_1_2
REG_1_3
31
31
0
0
REG_2
Field
31 0
Field
31 0
Field
31 0
30
30
0
0
29
29
0
0
HW_DRAM_CTL78
HW_DRAM_CTL79
28
28
0
0
Controls pad termination and loopback for data slice 2.
Data slice 2 is disabled.
Controls pad termination and loopback for data slice 3.
Data slice 3 is disabled.
Selects the dfi_rddata_valid delay.
Controls PHY functionality.
Bit [25] = Selects the address / command path.
'b0 = DFI control signals are captured 1 cycle after being sent from the MC.
'b1 = DFI control signals are captured 1/4 cycle after being sent from the MC.
27
27
0
0
26
26
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
25
0
0
24
24
0
0
23
23
0
0
HW_DRAM_CTL77 field descriptions
HW_DRAM_CTL78 field descriptions
HW_DRAM_CTL79 field descriptions
800E_0000h base + 138h offset = 800E_0138h
800E_0000h base + 13Ch offset = 800E_013Ch
22
22
0
0
21
21
0
0
20
20
0
0
19
19
0
0
PHY_CTRL_REG_1_3
18
18
0
PHY_CTRL_REG_2
0
17
17
0
0
16
16
0
0
15
15
0
0
Description
Description
Description
14
14
0
0
13
13
0
0
12
12
0
0
11
11
0
0
10
10
0
0
0
0
9
9
0
0
8
8
Freescale Semiconductor, Inc.
0
0
7
7
0
0
6
6
0
0
5
5
0
0
4
4
3
0
3
0
0
0
2
2
0
0
1
1
0
0
0
0