MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 114

• 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)
4-18
break;
case 2:
if (MACSR.OMC == 0 || MACSR.PAVx == 0)
MACSR.V = MACSR.PAVx
MACSR.N = ACCx[47]
if (ACCx[47:0] == 0x0000_0000_0000)
if ((ACCx[47:39] == 0x00_0) || (ACCx[47:39] == 0xff_1))
then {
then MACSR.Z = 1
else MACSR.Z = 0
then MACSR.EV = 0
else MACSR.EV = 1
/* check for accumulation overflow */
if (accumulationOverflow == 1)
/* transfer the result to the accumulator */
ACCx[47:0] = result[47:0]
MACSR.PAVx = 0
/* select the input operands */
if (sz == word)
/* perform the multiply */
product[63:0] = operandY[31:0] * operandX[31:0]
/* check for product overflow */
if (product[63:40] != 0x0000_00)
}
then {MACSR.PAVx = 1
}
then {if (U/Ly == 1)
}
else {operandY[31:0] = Ry[31:0]
}
then {
MACSR.V = 1
if (MACSR.OMC == 1)
/* unsigned integers */
if (U/Lx == 1)
operandX[31:0] = Rx[31:0]
MACSR.PAVx = 1
MACSR.V = 1
if (inst == MSAC && MACSR.OMC == 1)
then /* accumulation overflow,
then operandY[31:0] = {0x0000, Ry[31:16]}
else operandY[31:0] = {0x0000, Ry[15:0]}
then operandX[31:0] = {0x0000, Rx[31:16]}
else operandX[31:0] = {0x0000, Rx[15:0]}
then result[47:0] = 0x0000_0000_0000
else if (MACSR.OMC == 1)
MCF5271 Reference Manual, Rev. 2
if (result[47] == 1)
/* product overflow */
saturationMode enabled */
then result[47:0] = 0x007f_ffff_ff00
else result[47:0] = 0xff80_0000_0000
then /* overflowed MAC,
saturationMode enabled */
Freescale Semiconductor