MPC564MZP66 Freescale Semiconductor, MPC564MZP66 Datasheet - Page 783

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MPC564MZP66

Manufacturer Part Number
MPC564MZP66
Description
IC MCU 512K FLASH 66MHZ 388-BGA
Manufacturer
Freescale Semiconductor
Series
MPC5xxr
Datasheets

Specifications of MPC564MZP66

Core Processor
PowerPC
Core Size
32-Bit
Speed
66MHz
Connectivity
CAN, EBI/EMI, SCI, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
56
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 2.7 V
Data Converters
A/D 32x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
388-BGA
For Use With
MPC564EVB - KIT EVAL FOR MPC561/562/563/564
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-

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For example, with 0x00FF in the counter and 0x0002 in MPWMPULR2, the period is 255 PWM clock
count and the pulse width is 2 PWM clock counts.
For a given system clock frequency, with a given counter divide ratio and clock selection divide ratio, the
output pulse width is given by the following equation:
where V
In such conditions, the minimum output pulse width that can be obtained is given by:
and the maximum pulse width by:
17.10.3.5 Duty Cycles (0% and 100%)
The 0% and 100% duty cycles are special cases to give flexibility to the software to create a full range of
outputs. The “always set” and “always clear” conditions of the output flip-flop are established by the value
in register MPWMPULR2. These boundary conditions are generated by software, just like another pulse.
When the PWM output is being used to generate an analog level, the 0% and 100% represent the full scale
values.
The 0% output is created with a 0x0000 in register MPWMPULR2, which prevents the output flip-flop
from ever being set.
The 100% output is created when the content of register MPWMPULR2 is equal to or greater than the
content of register MPWMPERR. Thus, the width register match occurs on counter reload. The state
sequencer provides the timing to ensure that the first appearance of a 100% value in register
MPWMPULR2 causes a glitchless always-set condition of the output flip-flop when TRSP = ‘0’.
Freescale Semiconductor
MPWMB2
Even if the output is forced to 100%, the 16-bit up counter continues its
counting and that output changes to or from the 100% value are done
synchronously to the selected period.
When a PWM output period is selected to be 65536 PWM clocks by loading
0x0000 in the period register, it is not possible to have an 100% duty cycle
output signal. In this case, the maximum duty cycle available is of
65535/65536.
is the value in the register B2
Maximum_Pulse_Width
Pulse_Width
Minimum_Pulse_Width
MPC561/MPC563 Reference Manual, Rev. 1.2
=
=
N MCPSM N MPWMSM
---------------------------------------------------------------------------------------------------------------------------------------- -
N MCPSM N MPWMSM
-------------------------------------------------------------------------------------------------------- -
NOTE
NOTE
=
²
²
N MCPSM N MPWMSM
------------------------------------------------------------------ -
f SYS
f SYS
f SYS
²
²
²
(
V MPWMB2
2
Bit_of_Resolution
Modular Input/Output Subsystem (MIOS14)
1
)
17-51

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