MPC8313EZQADDC Freescale Semiconductor, MPC8313EZQADDC Datasheet - Page 259
MPC8313EZQADDC
Manufacturer Part Number
MPC8313EZQADDC
Description
Microprocessors - MPU 8313 REV2.2 PB W/ENC
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC8313CZQADDC.pdf
(1214 pages)
Specifications of MPC8313EZQADDC
Processor Series
MPC8313E
Core
e300
Data Bus Width
16 bit
Maximum Clock Frequency
133 MHz
Program Memory Size
16 KB
Data Ram Size
16 KB
Interface Type
I2C
Mounting Style
SMD/SMT
Package / Case
PBGA
Number Of Programmable I/os
32
Number Of Timers
4
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5.7.3
The GTM unit can operate in the following modes.
5.7.3.1
GTCFRn[PCAS] and GTCFR2[SCAS] are used to put the timers into different cascaded modes:
5.7.3.2
The clock input to the timer’s prescaler can be selected from three sources:
5.7.3.3
Each timer can be configured to count until a reference is reached and then either begin a new time count
immediately or continue to run. The FRR bit of the corresponding GTMRR selects each mode.
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Input capture capability
Output compare with programmable mode for the output pin
Free run and restart modes
Functional and programming compatibility with MPC8260 timers
Non-cascaded mode: Each timer (timer 1, timer 2, timer 3, and timer 4), function as a independent
16-bit timer with a 16-bit GTRFR, GTCPR, GTMDR, and GTCNR. In this mode, the non-cascaded
GTRFR, GTCPR, and GTCNR should be referenced with corresponding 16-bit bus cycles.
Pair-cascaded mode: In this mode, two 16-bit timers can be internally cascaded to form a 32-bit
counter: timer 1 can be internally cascaded to timer 2 and timer 3 may be internally cascaded to
timer 4. Because the decision to cascade timers is made independently, the user has the option of
selecting two 16-bit timers and one 32-bit timer, or two 32-bit timers. When working in the
pair-cascaded mode, the cascaded GTRFR, GTCPR, and GTCNR should be referenced with 32-bit
bus cycles.
Super-cascaded mode: In this mode, all four 16-bit timers can be internally cascaded to form a
64-bit counter. When working in the super-cascaded mode, the cascaded GTRFR, GTCPR, and
GTCNR should be referenced with two 32-bit bus cycles.
The system clock
The system slow go clock (system bus clock internally divided by 16)
The corresponding TINx pin
Free run reference mode. The corresponding timer count continues to increment after the reference
value is reached.
Reset reference mode. The corresponding timer count is reset immediately after the reference value
is reached.
GTM Modes of Operation
Cascaded Modes
Clock Source Modes
Reference Modes
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
System Configuration
5-51
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