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MPC8280 Datasheet(PDF) 476 Page - Freescale Semiconductor, Inc

Part # MPC8280
Description  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 Datasheet(HTML) 476 Page - Freescale Semiconductor, Inc

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Memory Controller
MPC8280 PowerQUICC II Family Reference Manual, Rev. 1
11-56
Freescale Semiconductor
Figure 11-44. GPCM Memory Device Basic Timing (ACS = 00, CSNT = 1, TRLX = 0)
When ACS
≠ 00 and CSNT = 1, WE and CS are negated one quarter of a clock earlier, as shown in
Figure 11-45.
Figure 11-45. GPCM Memory Device Basic Timing (ACS
≠ 00, CSNT = 1, TRLX = 0)
11.5.1.3
Relaxed Timing
ORx[TRLX] is provided for memory systems that require more relaxed timing between signals. When
TRLX = 1 and ACS
≠ 00, an additional cycle between the address and strobes is inserted by the MPC8280
memory controller. See Figure 11-46 and Figure 11-47.
Clock
Address
PSDVAL
CS
WE
OE
Data
CSNT = 1
Clock
Address
PSDVAL
CS
WE
Data
CSNT = 1
ACS = 11
ACS = 10



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