MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1228

• 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
14.8.169 DRAM Control Register 180 (HW_DRAM_CTL180)
This is a DRAM configuration register.
Address:
Re-
1228
Reset
set
CURRENT_BDW
Bit
TDFI_PHYUPD_
TDFI_PHYUPD_
TDFI_PHYUPD_
W
R
Bit
W
31
RSVD2
0
R
RSVD3
RSVD2
RSVD1
RSVD2
RSVD1
TYPE1
TYPE3
TYPE2
31 24
23 22
31 30
29 16
15 14
AXI5_
21 8
13 0
Field
Field
6 0
30
7
0
15
0
29
0
HW_DRAM_CTL180
28
0
14
0
Always write zeroes to this field.
Always write zeroes to this field.
Holds the DFI tPHYUPD_TYPE1 timing parameter.
Holds the DFI tphyupd_typeX timing parameter. This parameter is read-only.
Always write zeroes to this field.
Current bandwidth usage percentage for port 5. READ-ONLY.
Always write zeroes to this field.
Holds the DFI tPHYUPD_TYPE3 timing parameter.
Holds the DFI tphyupd_typeX timing parameter. This parameter is read-only.
Always write zeroes to this field.
Holds the DFI tPHYUPD_TYPE2 timing parameter.
Holds the DFI tphyupd_typeX timing parameter. This parameter is read-only.
27
0
TDFI_PHYUPD_TYPE1[15:8]
26
0
13
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
TDFI_PHYUPD_TYPE3
25
0
24
0
12
0
23
0
HW_DRAM_CTL179 field descriptions
HW_DRAM_CTL180 field descriptions
800E_0000h base + 2D0h offset = 800E_02D0h
22
0
11
0
21
0
20
10
0
0
19
0
18
0
0
9
17
0
16
0
0
8
RSVD1
15
0
Description
Description
RSVD1
14
0
7
0
13
0
0
12
6
0
11
0
5
0
10
0
TDFI_PHYUPD_TYPE2
AXI5_CURRENT_BDW
0
9
4
0
0
8
Freescale Semiconductor, Inc.
0
7
0
3
0
6
0
5
0
2
0
4
3
0
0
1
0
2
0
1
0
0
0
0