MCF5253VM140J Freescale Semiconductor, MCF5253VM140J Datasheet - Page 226

• Manufacturer Part Number: MCF5253VM140J
• Description: IC MCU 2.1MIPS 140MHZ 225MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253VM140J

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 70°C
• Package / Case: 225-MAPBGA
• Processor Series: MCF525x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

IDE and Flash Media Interface
13.5.7.2
This sequence sends a read data command to the card. The card sends back a response token on the CMD
line, while at the same time sending the data on the DATA lines. The sequence is set to receive
BLOCKCOUNT data packets from the card. No STOP command is sent as part of this sequence.
CMDBITCOUNT = 46
if(wide_shift_mode)
else
FLASHMEDIACMD2 = 0x460000 + CMDBITCOUNT
FLASHMEDIACMD1 = 0x040000 + wide_shift_mask
while(CMDBITCOUNT > 0)
wait until ((FLASHMEDIACMD2 & 0xFFFF) == 0) OR
wait until (SHIFTBUSY2FALL event)
/* start receiving data and status */
RESPBITCOUNT = 46 or 134;
BLOCKCOUNT = <N>;
while(BLOCKCOUNT > 0)
}
13-28
wide_shift_mask = 0x400000;
wide_shift_mask = 0;
{
if(FLASHMEDIADATA2 empty)
}
{
-- start reception of new block
DATABITCOUNT = <blocklen> + crclen;
while(DATABITCOUNT > 0 || RESPBITCOUNT > 0)
if((FLASHMEDIASTATUS & 1) == 1)
BLOCKCOUNT = BLOCKCOUNT - 1;
Send Command to Card (Receive Multiple Data Blocks and Status)
{
write FLASHMEDIADATA2
CMDBITCOUNT = CMDBITCOUNT - 32;
}
{
if(RESPBITCOUNT > 0 && SHIFTBUSY2RISE event)
FLASHMEDIACMD2 = 0x400000 + RESPBITCOUNT;
if(SHIFTBUSY1RISE event)
if(FLASHMEDIADATA2 full)
if(FLASHMEDIADATA1 full)
}
CRC OK!.
if(BLOCKCOUNT == 1) /* last block */
else
{
read FLASHMEDIADATA2
RESPBITCOUNT = RESPBITCOUNT - 32;
}
{
read FLASHMEDIADATA1
dataBitCount = dataBitCount - 32;
}
MCF5253 Reference Manual, Rev. 1
FLASHMEDIACMD1 = 0x000000 + dataBitCount + wide_shift_mask;
FLASHMEDIACMD1 = 0x040000 + dataBitCount + wide_shift_mask;
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