MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 124

• 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)
4-18
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)
MCF5235 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