MCF5249VF140 Freescale Semiconductor, MCF5249VF140 Datasheet - Page 339

• Manufacturer Part Number: MCF5249VF140
• Description: IC MPU 32B 140MHZ COLDF 160-BGA
• Manufacturer: Freescale Semiconductor
• Series: MCF524xr

Specifications of MCF5249VF140

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: I²C, IDE, MMC, SPI, UART/USART
• Peripherals: DMA, I²S, POR, Serial Audio, WDT
• Number Of I /o: 47
• Program Memory Type: ROMless
• Ram Size: 96K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 4x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 160-MAPBGA
• Embedded Interface Type: I2C, QSPI, UART
• Digital Ic Case Style: BGA
• No. Of Pins: 160
• Operating Temperature Range: 0°C To +70°C
• Frequency Typ: 140MHz
• Termination Type: SMD
• Rohs Compliant: No
• Family Name: MCF5xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 140MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.8V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 160
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Not Compliant

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MOVE.B (A7)+, MBCR;
MOVE.B CALLING,-(A7);Transmit the calling address, D0=R/W
MOVE.B (A7)+, MBDR;
IFREE MOVE.B MBSR,-(A7);Check the IBB bit of the MBSR.
;If it is clear, wait until it is set.
BTST.B #5, (A7)+;
BEQ.S IBFREE;
MBSR LEA.L MBSR,-(A7);Load effective address
BCLR.B #1,(A7)+;Clear the IIF flag
MOVE.B MBCR,-(A7);Push the address on stack,
BTST.B #5,(A7)+;check the MSTA flag
BEQ.S SLAVE;Branch if slave mode
MOVE.B MBCR,-(A7);Push the address on stack
BTST.B #4,(A7)+;check the mode flag
BEQ.S RECEIVE;Branch if in receive mode
MOVE.B MBSR,-(A7);Push the address on stack,
BTST.B #0,(A7)+;check ACK from receiver
BNE.B
END;If no ACK, end of transmission
TRANSMIT MOVE.B DATABUF,-(A7);Stack data byte
MOVE.B (A7)+, MBDR);Transmit next byte of data
Generation of STOP
A data transfer ends with a STOP signal generated by the “master’' device. A master transmitter can generate a STOP signal
after all the data has been transmitted. The following code is an example showing how a master transmitter generates a stop
condition.
MASTX
MOVE.B MBSR, -(A7); If no ACK, branch to end
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