MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 122

• 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

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]
MCF5235 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 */
Freescale Semiconductor