MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 241

• Manufacturer Part Number: MC68376BGMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BGMAB20

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Type: ROMless
• Ram Size: 7.5K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 160-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

11.4.3 Output Compare (OC)
11.4.4 Pulse-Width Modulation (PWM)
11.4.5 Synchronized Pulse-Width Modulation (SPWM)
MC68336/376
USER’S MANUAL
Refer to TPU programming note Input Capture/Input Transition Counter (ITC) TPU
Function (TPUPN16/D) for more information.
The output compare function generates a rising edge, a falling edge, or a toggle of the
previous edge in one of three ways:
This algorithm generates a 50% duty-cycle continuous square wave with each high/
low time equal to the calculated offset. Due to offset calculation, there is an initial link
time before continuous pulse generation begins.
Refer to TPU programming note Output Compare (OC) TPU Function (TPUPN12/D)
for more information.
The TPU can generate a pulse-width modulated waveform with any duty cycle from
zero to 100% (within the resolution and latency capability of the TPU). To define the
PWM, the CPU32 provides one parameter that indicates the period and another pa-
rameter that indicates the high time. Updates to one or both of these parameters can
direct the waveform change to take effect immediately, or coherently beginning at the
next low-to-high transition of the pin.
Refer to TPU programming note Pulse-Width Modulation (PWM) TPU Function
(TPUPN17/D) for more information.
The TPU generates a PWM waveform in which the CPU32 can change the period and/
or high time at any time. When synchronized to a time function on a second channel,
the synchronized PWM low-to-high transitions have a time relationship to transitions
on the second channel.
Refer to TPU programming note Synchronized Pulse-Width Modulation (SPWM) TPU
Function (TPUPN19/D) for more information.
1. Immediately upon CPU32 initiation, thereby generating a pulse with a length
2. At a programmable delay time from a user-specified time.
3. As a continuous square wave. Upon receiving a link from a channel, OC refer-
equal to a programmable delay time.
ences, without CPU32 interaction, a specifiable period and calculates an offset:
where “RATIO” is a parameter supplied by the user.
OFFSET
TIME PROCESSOR UNIT
=
PERIOD RATIO
MOTOROLA
11-7