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MPC8280 데이터시트(PDF) 478 Page - Freescale Semiconductor, Inc

부품명 MPC8280
상세설명  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 데이터시트(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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