MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 751
MPC561MZP56
Manufacturer Part Number
MPC561MZP56
Description
Manufacturer
Freescale
Datasheet
1.MPC561MZP56.pdf
(1420 pages)
Specifications of MPC561MZP56
Cpu Family
MPC56x
Device Core
PowerPC
Device Core Size
32b
Frequency (max)
56MHz
Interface Type
QSPI/SCI/SPI/UART
Total Internal Ram Size
32KB
# I/os (max)
56
Number Of Timers - General Purpose
22
Operating Supply Voltage (typ)
2.6/5V
Operating Supply Voltage (max)
2.7/5.25V
Operating Supply Voltage (min)
2.5/4.75V
On-chip Adc
2(32-chx10-bit)
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
388
Package Type
BGA
Program Memory Type
ROMLess
Program Memory Size
Not Required
Lead Free Status / RoHS Status
Not Compliant
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Part Number:
MPC561MZP56
Manufacturer:
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17.8
The MMCSM is a versatile counter submodule capable of performing complex counting and timing
functions, including modulus counting, in a wide range of applications. The MMCSM may also be
configured as an event counter, allowing the overflow flag to be set after a predefined number of events
(internal clocks or external events), or as a time source for other submodules.
The main components of the MMCSM are an 8-bit prescaler counter, an 8-bit prescaler register, a 16-bit
up-counter register, a 16-bit modulus latch register, counter loading and interrupt flag generation logic.
The contents of the modulus latch register is transferred to the counter under the following three
conditions:
Software can also write a value to the modulus register for later loading into the counter with one of the
two first criteria.
A software control register selects whether the clock input to the counter is one of the prescaler outputs or
the corresponding input signal. The polarity of the external input signal is also programmable.
The following sections describe the MMCSM in detail. A block diagram of the MMCSM is shown in
Figure
Freescale Semiconductor
1. When an overflow occurs
2. When an appropriate transition occurs on the external load signal
3. When the program writes to the counter register. In this case, the value is first written into the
17-10.
modulus register and immediately transferred to the counter.
MIOS14 Modulus Counter Submodule (MMCSM)
The MMCSM can also operate as a free running counter by loading the
modulus value of zero.
MPC561/MPC563 Reference Manual, Rev. 1.2
NOTE
Modular Input/Output Subsystem (MIOS14)
17-19
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