MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 409
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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
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Company:
Part Number:
MPC561MZP56
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Part Number:
MPC561MZP56R2
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address type match the values programmed in the BR and OR for one of the memory controller banks, the
attributes for the memory cycle are taken from the OR and BR registers. These attributes include the
following fields: CSNT, ACS, SCY, BSCY, WP, TRLX, BI, PS, and SETA.
chip-select timing options.
Byte write and read-enable signals (WE/BE[0:3]) are available for each byte that is written to or read from
memory. An output enable (OE) signal is provided to eliminate external glue logic for read cycles. Upon
system reset, a global (boot) chip select is available. (Refer to
Operation” for more information on the global chip select.) This provides a boot ROM chip select before
the system is fully configured.
The internal TA generation mode is enabled if the SETA bit in the OR register is cleared. However, if the
TA signal is asserted externally at least two clock cycles before the wait states counter has expired, this
assertion terminates the memory cycle. When SETA is cleared, it is forbidden to assert external TA less
than two clocks before the wait states counter expires.
Freescale Semiconductor
Intercycle space time
asynchronous device
Timing Attribute
Synchronous or
Access speed
Wait states
When a bank is configured for TA to be generated externally (SETA bit is
set) and the TRLX is set, the memory controller requires the external device
to provide at least one wait state before asserting TA to complete the
transfer. In this case, the minimum transfer time is three clock cycles.
SETA, TRLX
ACS, CSNT
SCY, BSCY,
Bits/Fields
EHTR
TRLX
MPC561/MPC563 Reference Manual, Rev. 1.2
Table 10-2. Timing Attributes Summary
The TRLX (timing relaxed) bit determines strobe timing to be fast or
relaxed.
The EHTR (extended hold time on read accesses) bit is provided for
devices that have long disconnect times from the data bus on read
accesses. EHTR specifies whether the next cycle is delayed one clock
cycle following a read cycle, to avoid data bus contentions. EHTR
applies to all cycles following a read cycle except for another read cycle
to the same region.
The ACS (address-to-chip-select setup) and CSNT (chip-select
negation time) bits cause the timing of the strobes to be the same as the
address bus timing, or cause the strobes to have setup and hold times
relative to the address bus.
From zero to 15 wait states can be programmed for any cycle that the
memory controller generates. The transfer is then terminated internally.
In simplest case, the cycle length equals (2 + SCY) clock cycles, where
SCY represents the programmed number of wait states (cycle length in
clocks). The number of wait states is doubled if the TRLX bit is set (2 +
(SCY x 2)).
When the SETA (external transfer acknowledge) bit is set, TA must be
generated externally, so that external hardware determines the number
of wait states.
NOTE
Section 10.7, “Global (Boot) Chip-Select
Description
Table 10-2
summarizes the
Memory Controller
10-11
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