MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 112

• 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

Enhanced Multiply-Accumulate Unit (EMAC)
4-16
if ((product[63:39] != 0x0000_00_0) && (product[63:39] != 0xffff_ff_1))
/* perform the multiply */
product[63:0] = operandY[31:0] * operandX[31:0]
/* check for product overflow */
/* sign-extend to 48 bits before performing any scaling */
/* scale product before combining with accumulator */
switch (SF)
{
}
if (MACSR.PAVx == 0)
/* check for accumulation overflow */
if (accumulationOverflow == 1)
}
else {operandY[31:0] = Ry[31:0]
}
then {
}
then {if (inst == MSAC)
}
then {MACSR.PAVx = 1
case 0:
case 1:
case 2:
case 3:
break;
product[40:0] = {product[39:0], 0}
break;
break;
product[39:0] = {product[39], product[39:1]}
break;
product[47:40] = {8{product[39]}}
else operandX[31:0] = {sign-extended Rx[15], Rx[15:0]}
operandX[31:0] = Rx[31:0]
MACSR.PAVx = 1
MACSR.V = 1
if (inst == MSAC && MACSR.OMC == 1)
then if (product[63] == 1)
else if (MACSR.OMC == 1)
then result[47:0] = ACCx[47:0] - product[47:0]
else result[47:0] = ACCx[47:0] + product[47:0]
MCF5271 Reference Manual, Rev. 2
/* 2-bit scale factor */
/* no scaling specified */
/* SF = “<< 1” */
/* reserved encoding */
/* SF = “>> 1” */
/* product overflow */
then result[47:0] = 0x0000_7fff_ffff
else result[47:0] = 0xffff_8000_0000
then /* overflowed MAC,
if (product[63] == 1)
then result[47:0] = 0xffff_8000_0000
else result[47:0] = 0x0000_7fff_ffff
saturationMode enabled */
/* sign-extend */
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