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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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MPC8280 데이터시트(PDF) 476 Page - Freescale Semiconductor, Inc |
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MPC8280 데이터시트(HTML) 476 Page - Freescale Semiconductor, Inc |
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476 / 1386 page  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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