MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 672

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MPC8544COMEDEV

Manufacturer Part Number
MPC8544COMEDEV
Description
KIT DEV EXPRESS MPC8544COM
Manufacturer
Freescale Semiconductor
Type
MPUr
Datasheets

Specifications of MPC8544COMEDEV

Contents
Board
For Use With/related Products
MPC8544
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Local Bus Controller
14.4.3.7.1
The precharge-to-activate interval parameter, controlled by LSDMR[PRETOACT], defines the earliest
timing for an ACTIVATE or REFRESH command after a PRECHARGE command to the same SDRAM
bank.
14.4.3.7.2
This parameter, controlled by LSDMR[ACTTORW], defines the earliest timing for a READ/WRITE
command after an ACTIVATE command to the same SDRAM bank.
14-52
LSDDQM[0:3]
LSDDQM[0:3]
LAD[0:31]
LAD[0:31]
LSDRAS
LSDCAS
LSDRAS
LSDCAS
LSDWE
LSDWE
LCLK
LALE
LCS n
LCLK
LCS n
LALE
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
ZZZZZZZZ RAS ADD
Precharge-to-Activate Interval
Activate-to-Read/Write Interval
ZZZZZZZZ
RAS ADD
RAS ADD
PRECHARGE
Command
Figure 14-36. PRETOACT = 2 (2 Clock Cycles)
Bank A
Figure 14-37. ACTTORW = 2 (2 Clock Cycles)
1111
1111
PRETOACT = 2
XXXXX
XXXX
ACTIVATE
Command
ACTTORW = 2
CAS ADD
ACTIVATE
Command
Bank A
CAS ADD
Command
D0
WRITE
0000
D1
D0
0000
D2
D3
ZZZZZZZZ
1111
ZZZZZZZZ
Freescale Semiconductor
1111

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