MPC8313ECZQADDC Freescale Semiconductor, MPC8313ECZQADDC Datasheet - Page 272
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MPC8313ECZQADDC
Manufacturer Part Number
MPC8313ECZQADDC
Description
Microprocessors - MPU 8313 REV2.2 PB ENC EXT
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC8313CZQADDC.pdf
(1214 pages)
Specifications of MPC8313ECZQADDC
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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System Configuration
5-64
•
•
Pair-cascaded mode (GTCFR1[PCAS] = 1 and/or GTCFR2[PCAS] = 1, GTCFR2[SCAS] = 0)
In this mode, two 16-bit timers can be internally cascaded to form a 32-bit counter: timer 1 may be
internally cascaded to timer 2 and timer 3 may be internally cascaded to timer 4, as shown in
Figure
selecting two 16-bit timers and one 32-bit timer (GTCFR1[PCAS] = 1, GTCFR2[PCAS] = 0 or
GTCFR1[PCAS1] = 0, GTCFR2[PCAS] = 1), or two 32-bit timers (GTCFR1[PCAS] = 1 and
GTCFR2[PCAS] = 1).
If GTCFR1[PCAS] = 1 and/or GTCFR2[SCAS] = 1, the two 16-bit timers (timer 1 and timer 2 or
timer 3 and timer 4) function as a 32-bit timer with a 32-bit GTRFR, GTCPR, and GTCNR. In this
case, GTMDR1/GTMDR3 is ignored, and the modes and functions are defined using
GTMDR2/GTMDR4, and GTCFR1/GTCFR2. The capture are controlled from TIN2, and the
interrupts are generated from GTEVR2. When working in the pair-cascaded mode, the cascaded
GTRFR, GTCPR, and GTCNR should be referenced with 32-bit bus cycles.
Super-cascaded mode (GTCFR2[SCAS] = 1)
In this mode, all four 16-bit timers can be internally cascaded to form a 64-bit counter, as shown
in
If GTCFR2[SCAS] = 1, the all four 16-bit timers function as a 64-bit timer with a cascaded 32-bit
GTRFR, GTCPR, and GTCNR. In this case, registers GTMDR1, GTMDR2, GTMDR3, and
GTCFR1 are ignored, and the modes and functions are defined using GTMDR4 and GTCFR2 only.
The capture are controlled from TIN4, and the interrupts are generated from GTEVR4. When
working in the super-cascaded mode, the cascaded GTRFR, GTCPR, and GTCNR should be
referenced with two 32-bit bus cycles.
Figure
GTRFR1, GTCPR1, GTCNR1
connected to D[31–16]
GTRFR3, GTCPR3, GTCNR3
connected to D[31–16]
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
5-49. Since the decision to cascade timers is made independently, the user has the option of
GTRFR1, GTCPR1, GTCNR1
connected to D[63–48]
GTRFR3, GTCPR3, GTCNR3
connected to D[31–16]
5-50.
Figure 5-50. Timers Super-Cascaded Mode Block Diagram
Timer1
Timer3
Figure 5-49. Timer Pair-Cascaded Mode Block Diagram
Timer3
Timer1
GTRFR2, GTCPR2, GTCNR2
connected to D[15–0]
GTRFR4, GTCPR4, GTCNR4
connected to D[15–0]
GTRFR2, GTCPR2, GTCNR2
connected to D[47–32]
GTRFR4, GTCPR4, GTCNR4
connected to D[15–0]
Timer2
Timer4
Timer4
Timer2
Capture
Capture
Capture
Freescale Semiconductor
Clock
Clock
Clock
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