MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 193

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

7.1.3.1 PWM Submodule
7.2 Signal Descriptions
The PWM has pins named PWM[n]A, PWM[n]B, PWM[n]X, FAULT[n],
PWM[n]_EXT_SYNC, EXT_FORCE, PWM[n]_EXTA, and PWM[n]_EXTB. The
PWM also has an on-chip input called EXT_CLK and output signals called
PWM[n]_OUT_TRIGx.
7.2.1 PWM Signals and Crossbar Module
On the MC56F825x/MC56F824x, some PWM signals are fed to or from the crossbar
switch module or are connected to other modules by the crossbar switch.
Freescale Semiconductor
• The FAULT[n] input pins are fed from the crossbar module. They are not assigned
• The PWM[n]_EXT_SYNC input signals are fed from the crossbar module.
• The EXT_FORCE signal is fed from the crossbar module.
Clock
Master
Reload
External Sync
Master Sync
directly to package pins.
Prescaler
Counter
Register
preload
reload
mux
mux
16 bit counter
Preload
Aux Clock (sub-module 0 only)
Figure 7-2. PWM Submodule Block Diagram
Compare 0 value
Compare 1 value
Compare 2 value
Compare 3 value
Compare 4 value
Compare 5 value
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
register reloads
comparator
comparator
comparator
comparator
comparator
comparator
Init Value
Init Value
Preliminary
Initialize
Initialize
16 bit
16 bit
16 bit
16 bit
16 bit
16 bit
Chapter 7 Enhanced Flex Pulse Width Modulator (eFlexPWM)
Mid-cycle reload
Modulo counter value
D
PWM off
D
PWM off
PWM on
PWM on
R
R
S
S
LDOK
Q
Q
Output Triggers
Interrupts
PWM23
PWM45
Generator
Reload
Logic
Comp.
Indep.
Dead
Time
Select
Logic
Mux
vs.
Pin
Mux
Fault inputs
from module bus
Master Sync
(sub-module 0 only)
protection
override
Master Reload
(sub-module 0 only)
Output
control
Fault
PWMX
PWMA
PWMB
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