MCF5282CVM66 Freescale Semiconductor, MCF5282CVM66 Datasheet - Page 87

• Manufacturer Part Number: MCF5282CVM66
• Description: IC MPU 512K 66MHZ 256-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF528xr

Specifications of MCF5282CVM66

• 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: 512KB (512K 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
• Controller Family/series: ColdFire
• No. Of I/o's: 150
• Ram Memory Size: 64KB
• Cpu Speed: 66.67MHz
• Embedded Interface Type: CAN, I2C, SPI, UART
• No. Of Pwm Channels: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 3-7
40-bit product used for accumulation, and 48-bit accumulator formats.
Therefore, the 48-bit accumulator definition is a function of the EMAC operating mode. Given that each
48-bit accumulator is the concatenation of 16-bit accumulator extension register (ACCextn) contents and
32-bit ACCn contents, the specific definitions are:
if MACSR[6:5] == 00
if MACSR[6:5] == 01 or 11 /* signed fractional mode */
if MACSR[6:5] == 10
The four accumulators are represented as an array, ACCn, where n selects the register.
Freescale Semiconductor
Complete Accumulator[47:0] = {ACCextn[15:0], ACCn[31:0]}
Complete Accumulator [47:0] = {ACCextn[15:8], ACCn[31:0], ACCextn[7:0]}
Complete Accumulator[47:0] = {ACCextn[15:0], ACCn[31:0]}
and
Extended Product
Extended Product
Figure 3-8
Accumulator
Accumulator
Product
Product
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
+
+
show relative alignment of input operands, the full 64-bit product, the resulting
Figure 3-8. Signed and Unsigned Integer Alignment
Extension Byte Upper [7:0]
Extension Byte Upper [7:0]
/* signed integer mode */
/* unsigned integer mode */
40
X
24
X
Figure 3-7. Fractional Alignment
OperandY
OperandX
OperandY
OperandX
8
8
8
8
Extension Byte Lower [7:0]
40
40
8
8
8
Accumulator [31:0]
32
32
32
32
32
32
32
23
Accumulator [31:0]
Enhanced Multiply-Accumulate Unit (EMAC)
Extension Byte Lower [7:0]
8
0
3-9