MCF5281CVM66J Freescale Semiconductor, MCF5281CVM66J Datasheet - Page 95
MCF5281CVM66J
Manufacturer Part Number
MCF5281CVM66J
Description
IC MPU 256K FLASH 256MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF528xr
Datasheet
1.MCF5216CVM66J.pdf
(766 pages)
Specifications of MCF5281CVM66J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
66MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, SPI, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
150
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
256-MAPBGA
Processor Series
MCF528x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5282-KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5281CVM66J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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break;
case 2:
if (MACSR.OMC == 0 || MACSR.PAVn == 0)
if ((operandY[31:0] == 0x8000_0000) and and
MACSR.V = MACSR.PAVn
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
/* perform the multiply */
product[63:0] = (operandY[31:0] * operandX[31:0]) << 1
/* check for product rounding */
if (MACSR.R/T == 1)
/* sign-extend to 48 bits and combine with accumulator */
/* check for the -1 * -1 overflow case */
if (inst == MSAC)
/* check for accumulation overflow */
if (accumulationOverflow == 1)
/* transfer the result to the accumulator */
ACCx[47:0] = result[47:0]
MACSR.PAVn = 0
/* select the input operands */
if (sz == word)
}
}
else {operandY[31:0] = Ry[31:0]
}
then { /* perform convergent rounding */
else if ((product[23:0] == 0x80_0000) and and
}
then product[71:64] = 0x00
else product[71:64] = {8{product[63]}}
then result[47:0] = ACCx[47:0] - product[71:24]
else result[47:0] = ACCx[47:0] + product[71:24]
then {MACSR.PAVn = 1
}
then {if (U/Ly == 1)
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
operandX[31:0] = Rx[31:0]
if (product[23:0] > 0x80_0000)
MACSR.V = 1
if (MACSR.OMC == 1)
/* unsigned integers */
if (U/Lx == 1)
then operandX[31:0] = {Rx[31:16], 0x0000}
else operandX[31:0] = {Rx[15:0],
then product[63:24] = product[63:24] + 1
then /* accumulation overflow,
then operandY[31:0] = {0x0000, Ry[31:16]}
else operandY[31:0] = {0x0000, Ry[15:0]}
if (result[47] == 1)
then product[63:24] = product[63:24] + 1
saturationMode enabled */
then result[47:0] = 0x007f_ffff_ff00
else result[47:0] = 0xff80_0000_0000
(operandX[31:0] == 0x8000_0000))
/* sign-extend */
0x0000}
/* zero-fill */
Enhanced Multiply-Accumulate Unit (EMAC)
(product[24] == 1))
3-17
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