MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 197
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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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MPC561MZP56
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MPC561MZP56R2
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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3.15.4.9
A decrementer exception occurs when no higher priority exception exists, the decrementer register has
completed decrementing, and MSR[EE] = 1. The decrementer exception request is canceled when the
exception is handled. The decrementer register counts down, causing an exception (unless masked) when
passing through zero. The decrementer implementation meets the following requirements:
The register settings for the decrementer exception are shown in
Freescale Semiconductor
1
•
•
•
•
Save/Restore Register 0 (SRR0)
Save/Restore Register 1 (SRR1)
If the exception occurs during an instruction fetch in Decompression On mode, the SRR0 register will contain a
compressed address.
Machine State Register (MSR)
Machine State Register (MSR)
Loading a GPR from the decrementer does not affect the decrementer.
Storing a GPR value to the decrementer replaces the value in the decrementer with the value in the
GPR.
Whenever bit 0 of the decrementer changes from zero to one, an exception request is signaled. If
multiple decrementer exception requests are received before the first can be reported, only one
exception is reported. The occurrence of a decrementer exception cancels the request.
If the decrementer is altered by software and if bit 0 is changed from zero to one, an interrupt
request is signaled.
Table 3-29. Register Settings following a Floating-Point Unavailable Exception (continued)
Decrementer Exception (0x0900)
Register
Register
Table 3-30. Register Settings Following a Decrementer Exception
1
MPC561/MPC563 Reference Manual, Rev. 1.2
DCMPEN
DCMPEN
[16:31]
Other
[0:15]
Other
Bits
Bits
ME
ME
LE
LE
All
IP
IP
No change
Set to value of ILE bit prior to the exception
This bit is set according to (BBCMCR[EN_COMP] AND
BBCMCR[EXC_COMP])
would have attempted to execute next if no exception
conditions were present.
Loaded from MSR[16:31]
No change
Set to value of ILE bit prior to the exception
This bit is set according to (BBCMCR[EN_COMP] AND
BBCMCR[EXC_COMP])
No change
Cleared to 0
Set to the effective address of the instruction that the processor
Cleared to 0
No change
Cleared to 0
Table
Setting Description
Setting Description
3-30.
Central Processing Unit
3-53
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