MCF51EM128CLK Freescale Semiconductor, MCF51EM128CLK Datasheet - Page 233
MCF51EM128CLK
Manufacturer Part Number
MCF51EM128CLK
Description
IC MCU 32BIT 128KB FLASH 80LQFP
Manufacturer
Freescale Semiconductor
Series
MCF51EMr
Datasheets
1.MCF51EM128CLL.pdf
(2 pages)
2.MCF51EM128CLL.pdf
(54 pages)
3.MCF51EM128CLL.pdf
(636 pages)
Specifications of MCF51EM128CLK
Core Processor
Coldfire V1
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, SCI, SPI
Peripherals
LCD, LVD, PWM, WDT
Number Of I /o
56
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 12x16b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-LQFP
Processor Series
MCF51EM
Core
ColdFire V1
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
RS-232, LIN
Maximum Clock Frequency
50 MHz
Number Of Timers
3
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
TWR-MCF51CN-KIT, TWR-SER, TWR-ELEV, TOWER
Minimum Operating Temperature
- 40 C
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:
MCF51EM128CLK
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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}
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
/* scale product before combining with accumulator */
switch (SF)
{
}
/* combine with accumulator */
if (MACSR.V == 0)
/* check for accumulation overflow */
if (accumulationOverflow == 1)
/* transfer the result to the accumulator */
acc[31:0] = result[31:0]
MACSR.N = result[31]
if (result[31:0] == 0x0000_0000)
}
then {if (inst == MSAC)
}
then {MACSR.V = 1
}
then MACSR.Z = 1
else MACSR.Z = 0
case 0:
case 1:
case 2:
case 3:
break;
if (product[31] ^ product[30])
break;
break;
if (MACSR.OMC == 0 || MACSR.V = 0)
break;
if (MACSR.OMC == 1)
then {MACSR.V = 1
}
else product[31:0] = {product[30:0], 0}
then product[31:0] = {product[31], product[31:1]}
then result[31:0] = acc[31:0] - product[31:0]
else result[31:0] = acc[31:0] + product[31:0]
then /* accumulation overflow,
/* 2-bit scale factor */
/* no scaling specified */
/* SF = “<< 1” */
if (inst == MSAC && MACSR.OMC == 1)
/* reserved encoding */
/* SF = “>> 1” */
if (result[31] == 1)
then if (product[63] == 1)
else if (MACSR.OMC == 1)
saturationMode enabled */
then result[31:0] = 0x7fff_ffff
else result[31:0] = 0x8000_0000
then /* overflowed MAC,
then result[31:0] = 0x7fff_ffff
else result[31:0] = 0x8000_0000
else result[31:0] = 0x7fff_ffff
if (product[63] == 1)
saturationMode enabled */
then result[31:0] = 0x8000_0000
else result[31:0] = 0x7fff_ffff
Multiply-Accumulate Unit (MAC)
9-11
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