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MPC821 датащи(PDF) 151 Page - NXP Semiconductors

номер детали MPC821
подробное описание детали  Design Specification
PDF  242 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

MPC821 датащи(HTML) 151 Page - NXP Semiconductors

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Support Information
MPC8XXFADS Design Specification—Rev 0.1
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
!UpperHalfEn~ = (!DramBank1Cs~ & DRAM_ENABLED #
!DramBank2Cs~ & (SIMM36200 # SIMM36800) & DRAM_ENABLED #
!FlashCs~
& FLASH_ENABLED #
!ContRegCs~ & CONTROL_REG_ENABLED #
!PccCE1~ & PCC_ENABLED #
!PccCE2~ & PCC_ENABLED #
!ConfigHoldEnd.fb)
&
(STATE_HOLD_OFF_CONSIDERED & (!HOLD_OFF_PERIOD) #
STATE_NO_HOLD_OFF);
!LowerHalfEn~ = (!DramBank1Cs~ & DRAM_ENABLED & !IS_HALF_WORD #
!DramBank2Cs~ & (SIMM36200 # SIMM36800) &
!IS_HALF_WORD & DRAM_ENABLED #
!FlashCs~
& FLASH_ENABLED #
!ConfigHoldEnd.fb & FLASH_CONFIGURATION_ENABLED) &
(STATE_HOLD_OFF_CONSIDERED & !HOLD_OFF_PERIOD #
STATE_NO_HOLD_OFF);
"******************************************************************************
"* local data buffers disable (data contention protection)
"******************************************************************************
equations
HoldOffConsidered.clk = SYSCLK;
D_FlashOe~ = FlashOe~;
DD_FlashOe~ = D_FlashOe~.fb;
TD_FlashOe~ = DD_FlashOe~.fb;
"* QD_FlashOe~ = TD_FlashOe~.fb;
"* PD_FlashOe~ = QD_FlashOe~.fb;
@ifdef DEBUG {
equations
HoldOffConsidered := HOLD_OFF_CONSIDERED;
}
@ifndef DEBUG {
state_diagram HoldOffConsidered
state NO_HOLD_OFF:
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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