MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 363

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

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
MCF5235 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.
18-25