MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1227

• 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

14.8.168 DRAM Control Register 179 (HW_DRAM_CTL179)
This is a DRAM configuration register.
Address:
Freescale Semiconductor, Inc.
Reset
Reset
CURRENT_BDW
AXI5_BDW
AXI4_BDW
Bit
Bit
W
W
TCKESR
R
R
RSVD4
RSVD3
RSVD2
RSVD1
30 24
22 16
AXI4_
Field
14 8
7 5
4 0
RSVD2
31
23
15
15
31
0
0
HW_DRAM_CTL179
14
30
0
0
Always write zeroes to this field.
Maximum bandwidth percentage for port 5.
Always write zeroes to this field.
Current bandwidth usage percentage for port 4. READ-ONLY.
Always write zeroes to this field.
Maximum bandwidth percentage for port 4.
Always write zeroes to this field.
Minimum CKE low pulse width during a self-refresh.
Defines the minimum number of cycles that CKE must be held low during self-refresh. pulse width, in cycles.
If the memory specification does not define a tckesr, then the tckesr parameter should be programmed with
the tcke value.
13
29
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
12
28
0
0
RSVD3
AXI4_BDW
HW_DRAM_CTL178 field descriptions
800E_0000h base + 2CCh offset = 800E_02CCh
11
27
0
0
10
26
0
0
25
0
0
9
24
0
0
8
Description
23
0
0
7
RSVD2
RSVD1
22
0
0
6
Chapter 14 External Memory Interface (EMI)
21
5
0
0
TDFI_PHYUPD_TYPE1[21:16]
20
4
0
0
19
0
0
3
TCKESR
18
0
0
2
17
0
0
1
1227
16
0
0
0