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MPC8280 Scheda tecnica(PDF) 478 Page - Freescale Semiconductor, Inc

Il numero della parte MPC8280
Spiegazioni elettronici  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
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Produttore elettronici  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 Scheda tecnica(HTML) 478 Page - Freescale Semiconductor, Inc

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Memory Controller
MPC8280 PowerQUICC II Family Reference Manual, Rev. 1
11-58
Freescale Semiconductor
Figure 11-48. GPCM Relaxed-Timing Write (ACS = 10, SCY = 0, CSNT = 1, TRLX = 1)
Figure 11-49. GPCM Relaxed-Timing Write (ACS = 00, SCY = 0, CSNT = 1, TRLX = 1)
11.5.1.4
Output Enable (OE) Timing
The timing of the OE is affected only by TRLX. It always asserts and negates on the rising edge of the
external bus clock. OE always asserts on the rising clock edge after CS is asserted, and therefore its
assertion can be delayed (along with the assertion of CS) by programming TRLX = 1. OE deasserts on the
rising clock edge coinciding with or immediately after CS deassertion.
Clock
Address
PSDVAL
CS
BCTL
x
WE
OE
Data
ACS = 10
CSNT = 1
Clock
Address
PSDVAL
CS
BCTL
x
WE
OE
Data



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