MPC8533EVTANG Freescale Semiconductor, MPC8533EVTANG Datasheet - Page 624
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MPC8533EVTANG
Manufacturer Part Number
MPC8533EVTANG
Description
MPU POWERQUICC 783-PBGA
Manufacturer
Freescale Semiconductor
Datasheets
1.MPC8533VTALF.pdf
(112 pages)
2.MPC8533VTALF.pdf
(2 pages)
3.MPC8533VTALF.pdf
(16 pages)
4.MPC8533VTALF.pdf
(1332 pages)
Specifications of MPC8533EVTANG
Processor Type
MPC85xx PowerQUICC III 32-Bit
Speed
800MHz
Voltage
1V
Mounting Type
Surface Mount
Package / Case
783-FCPBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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Local Bus Controller
14-6
LSDDQM[0:3]/
LUPWAIT/
LWE[0:3]/
LSDRAS/
LSDCAS/
LSDA10/
LBS[0:3]
LSDWE/
LGPL4/
LPBSE
LGPL0
LGPL1
LGPL2
LGPL3
Signal
LGTA/
LOE/
I/O
I/O GPCM transfer acknowledge/General-purpose line 4/UPM wait/parity byte select
MPC8533E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
O GPCM write enable/SDRAM data mask/UPM byte select. These signals select or validate each byte lane
O SDRAM A10/General-purpose line 0
O SDRAM write enable/General-purpose line 1
O GPCM output enable/SDRAM RAS/General-purpose line 2
O SDRAM CAS/General-purpose line 3
Table 14-2. Local Bus Controller Detailed Signal Descriptions (continued)
of the data bus. For banks with port sizes of 32 bits (as set by BR n [PS]), all four signals are defined. For a
16-bit port size, only bits 0:1 are defined; and for an 8-bit port size, bit 0 is the only defined signal. The
least-significant address bits of each access also determine which byte lanes are considered valid for a
given data transfer.
Meaning
Meaning
Meaning
Meaning
Meaning
Meaning
Timing Assertion/Negation—See
State
State
State
State
State
State
Asserted/Negated—For GPCM operation, LWE[0:3] assert for each byte lane enabled for
Asserted/Negated—For SDRAM accesses, represents address bit 10. When the row address is
Asserted/Negated—Should be connected to the SDRAM device WE input. Acts as the SDRAM
Asserted/Negated—Controls the output buffer of memory when accessing memory/devices in
Asserted/Negated—In SDRAM mode, drives the column address strobe (CAS).
Asserted/Negated—Input in GPCM mode used for transaction termination. It may also be
writing.
For SDRAM operation, LSDDQM[0:3] function as the DQM or data mask signals provided
by JEDEC-compliant SDRAM devices, with one DQM provided per byte lane.
LSDDQM[0:3] are driven high when the LBC wishes to mask a write or disable read data
output from the SDRAM.
LBS[0:3] are programmable byte-select signals in UPM mode. See
Array,”
details regarding the timing of LWE[0:3].
driven, it drives the value of address bit 10. When the column address is driven, it forms
part of the SDRAM command.
One of six general-purpose signals when in UPM mode; it drives a value programmed in
the UPM array.
write enable when accessing SDRAM.
One of six general-purpose signals when in UPM mode, and drives a value programmed
in the UPM array.
GPCM mode. For SDRAM accesses, it is the row address strobe (RAS).
One of six general-purpose lines when in UPM mode; it drives a value programmed in the
UPM array.
One of six general-purpose signals when in UPM mode, and drives a value programmed
in the UPM array.
configured as one of six general-purpose output signals when in UPM mode or as an input
to force the UPM controller to wait for the memory/device.
When configured as LPBSE, it disables any use in GPCM or UPM modes. Because
systems that use read-modify-write parity require an additional memory device, they must
generate a byte-select like a normal data device. ANDing LBS[0:3] through external logic
to achieve the logical function of this byte-select adds a delay to the byte-select path that
can affect memory access timing. The LBC provides this optional byte-select signal that is
an internal AND of the four (active low) byte selects, allowing glueless, faster connection
to RMW-parity devices.
for programming details about LBS[0:3].
Section 14.4.2, “General-Purpose Chip-Select Machine (GPCM),”
Description
Freescale Semiconductor
Section 14.4.4.4, “RAM
for
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