MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 343

• Manufacturer Part Number: MCF5270CAB100
• Description: MCU V2 COLDFIRE 64K SRAM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5270CAB100

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 160-QFP
• Processor Series: MCF527x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

18.4.6 Initialization Code
The following assembly code initializes the SDRAM example.
Power-Up Sequence:
move.w
move.w
move.l
move.l
move.l
move.l
Precharge Sequence:
move.l
move.l
move.l
precharge
move.l
Refresh Sequence:
move.l
move.l
Mode Register Initialization Sequence:
move.l
move.l
move.l
move.l
move.l
Freescale Semiconductor
#0x0026, d0
d0, DCR
#0xFF880300, d0
d0, DACR0
#0x00740001, d0
d0, DMR0
#0xFF880308, d0
d0, DACR0
#0xBEADDEED, d0
d0, 0xFF880000
#0xFF888300, d0
d0, DACR0
#0x00600001, d0
#0xFF888340, d0
d0, DACR0
#0x00000000, d0
d0, 0xFF800800
MCF5271 Reference Manual, Rev. 2
//Initialize DCR
//Initialize DACR0
//Initialize DMR0
//Set DACR0[IP]
//Write
//Enable refresh bit in DACR0
//Initialize DMR0 move.ld0, DMR0
//Enable DACR0[IMRS]; DACR0[RE] remains set
//Access SDRAM address to initialize mode register
and
value
to
memory
location
SDRAM Example
to
init.
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