MCF51EM256CLK Freescale Semiconductor, MCF51EM256CLK Datasheet - Page 368

• Manufacturer Part Number: MCF51EM256CLK
• Description: IC MCU 32BIT 256KB FLASH 80LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr

Specifications of MCF51EM256CLK

• 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: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K 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: DEMOEM
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Timer/PWM Module(TPM)
When a channel is configured for edge-aligned PWM (CPWMS=0, MSnB=1 and ELSnB:ELSnA not =
0:0), the data direction is overridden, the TPMCHn pin is forced to be an output controlled by the TPM,
and ELSnA controls the polarity of the PWM output signal on the pin. When ELSnB:ELSnA=1:0, the
TPMCHn pin is forced high at the start of each new period (TPMCNT=0x0000), and the pin is forced low
when the channel value register matches the timer counter. When ELSnA=1, the TPMCHn pin is forced
low at the start of each new period (TPMCNT=0x0000), and the pin is forced high when the channel value
register matches the timer counter.
16-6
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
TPMCNTH:TPMCNTL
TPMCNTH:TPMCNTL
TPM
TPM
TPM
TPM
MODH:
MODH:
MODH:
MODH:
Figure 16-2. High-True Pulse of an Edge-Aligned PWM
Figure 16-3. Low-True Pulse of an Edge-Aligned PWM
CHnF BIT
TPM
TPM
TPMCHn
CHnF BIT
TPM
TPM
TPMCHn
TOF BIT
TOF BIT
MODL = 0x0008
MODL = 0x0005
MODL = 0x0008
MODL = 0x0005
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Freescale Semiconductor
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