MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1125

• 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

14.8.20 DRAM Control Register 22 (HW_DRAM_CTL22)
This is a DRAM configuration register.
Freescale Semiconductor, Inc.
Reset
DLL_BYPASS_
DLLLOCKREG
CKE_DELAY
DLL_LOCK
Bit
W
R
RSVD3
RSVD2
RSVD1
MODE
31 27
26 24
23 16
Field
15 9
7 1
8
0
15
0
14
0
Always write zeroes to this field.
Additional cycles to delay CKE for status reporting.
Sets the number of additional cycles of delay to include in the CKE signal cke_status for status reporting.
The default delay is 0 cycles.
Number of delay elements in master DLL lock. READ-ONLY
Defines the actual number of delay elements used to capture one full clock cycle. This parameter is
automatically updated every time a refresh operation is performed. This parameter is read-only.
Always write zeroes to this field.
Status of DLL lock coming out of master delay. READ-ONLY
Shows status of the DLL as locked or unlocked. This parameter is read-only
'b0 = DLL is unlocked.
'b1 = DLL is locked.
Always write zeroes to this field.
Enable the DLL bypass feature of the controller.
This parameter has no meaning for this EMI.
13
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
RSVD2
12
0
HW_DRAM_CTL21 field descriptions
11
0
10
0
0
9
0
8
Description
0
7
0
6
Chapter 14 External Memory Interface (EMI)
5
0
RSVD1
4
0
0
3
0
2
0
1
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0
0