MPC8572EAMC Freescale Semiconductor, MPC8572EAMC Datasheet - Page 27

• Manufacturer Part Number: MPC8572EAMC
• Description: MPC8572 AMC RAPID SYSTEM
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8572EAMC

• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MPC8572E

5.1.1.1
Every DDR2 signal can be considered to be a member of one of four separate DDR signal groups. Each
group has a unique set of rules in terms of their connection and routing on the AdvancedMC board. These
four groups are shown in
Complex DDR2 timing adaptation is available via the DDR clocking subsystem of the MPC8572E. It
supports the following:
5.1.1.2
The DDR2 interface operates at 1.8 V I/O voltages. Reference voltages of 0.9 V are synthesized from a
5-V supply via the TPS51116 voltage regulator. This reference voltage is applied to each DDR2 device (at
the VREF pin) and the MPC8572E (at pin MVREF).
The DDR2 interface on the MPC8572E has the addition of the On-Die Termination (ODT) signals. ODT
signals are used to control the termination of the data group signals in the DDRII DRAM device. DDR2
Freescale Semiconductor
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•
•
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Sampling of the input data from the DDR2 memory
Positioning of the DQS output signals during writes to the DDR2 memory
Synchronizing the incoming DDR2 data to the internal clock
Control the relationship between output data and CLK_OUT
Address and command MA[0:15]
DDR Groups
Terminations and I/O Voltage
Signal Group
Control
Clocks
Data
MPC8572EAMC Advanced Mezzanine Card User Guide, Rev. 1.2
Table
5-2.
MBA[0:2]
#MWE
#MCAS
#MRAS
MCKE[0:3]
#MCS[0:3]
MODT[0:3]
MDIC[0:1]
MDQS[0:8]
#MDQS[0:8]A
MDM[0:8]
MDQ[0:63]
MECC[0:7]
MCK[0:5]
#MCK[0:5]
Table 5-2. DDR2 Interface Signals
Signal
Address bus
Bank address bus
Write enable
Column address strobe
Row address strobe
Clock enable
Chip select
On-die termination
DDR internal calibration
Data strobes
Data strobes complement
Data mask
Data bus
Error correction bits
Clock
Clocks complement
Description
MPC8572EAMC Functional Description
Processor)
I/O (w.r.t.
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
I
5-3