PPC440GR-3PBFFFCX AMCC [Applied Micro Circuits Corporation], PPC440GR-3PBFFFCX Datasheet - Page 78
![no-image](/images/no-image-200.jpg)
PPC440GR-3PBFFFCX
Manufacturer Part Number
PPC440GR-3PBFFFCX
Description
Power PC 440GR Embedded Processor
Manufacturer
AMCC [Applied Micro Circuits Corporation]
Datasheet
1.PPC440GR-3PBFFFCX.pdf
(82 pages)
- Current page: 78 of 82
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Example 3:
In this example, ECC is enabled. This requires that Stage 3 data be sampled at
will still work, but there will be more latency before the data is sampled into RDSP. In this example, T
controlled and set by the software.
Figure 13. DDR SDRAM Read Cycle Timing—Example 3
78
Read Clock Delayed
Revision 1.16 – July 19, 2006
Preliminary Data Sheet
Data in Stage 1 D
Data out Stage 1
Data out Stage 3
DQS Stage 1 C
Data in at RDSP
Data out RDSP
Data out Stage 2
Data at pin
DQS at pin
PLB Clock
with ECC
with ECC
with ECC
T
DIN
High
Low
High
Low
High
Low
High
High
Low
Low
T
T
D0
SIN
T
T
P
TE
T
D0
= Propagation delay from Stage 2 input to RDSP input w/o ECC
= Propagation delay from Stage 2 input to RDSP input with ECC
D0
T
D1
P
D1
D0
D1
D2
D0
D2
D1
D2
D3
T
440GR – PPC440GR Embedded Processor
TE
D3
D2
D3
D0
D1
D3
D2
(3)
D0
D1
(3)
. If ECC is disabled, the system
D2
D3
D0
D1
D2
D3
AMCC Proprietary
T
and T
D2
D3
TE
are
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