MPC821 datasheet(113/242 Pages) NXP

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Support Information

MPC8XXFADS Design Specification—Rev 0.1

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

"* If other values are required, this register may be written with new values

"* to become active for the next hard reset.

"* The state machines are built in a way that its power on value is changed in

"* one place - the declarations area.

"******************************************************************************

equations

@ifdef SLOW_PLL_LOCK {

!PonDefault~ = !ResetConf~ #

RGPORIn;

}

!Bcsr0Write~ = (!BrdContRegCs~ & !TA~ & !R_W~ & !A27 & !A28 & !A29 & !CntRegEn~);

!Bcsr1Write~ = (!BrdContRegCs~ & !TA~ & !R_W~ & !A27 & !A28 & A29 & !CntRegEn~);

!Bcsr4Write~ = (!BrdContRegCs~ & !TA~ & !R_W~ & A27 & !A28 & !A29 & !CntRegEn~);

ConfigReg.clk = SYSCLK;

state_diagram ERB

state INTERNAL_ARBITRATION:

if (MPC_WRITE_BCSR_0 &

(ERB_DATA_BIT.pin == EXTERNAL_ARBITRATION) &

(!KA_PON_RESET # (ERB_PON_DEFAULT != INTERNAL_ARBITRATION)) #

(KA_PON_RESET & (ERB_PON_DEFAULT == EXTERNAL_ARBITRATION)) ) then

EXTERNAL_ARBITRATION

else

INTERNAL_ARBITRATION;

state EXTERNAL_ARBITRATION:

if (MPC_WRITE_BCSR_0 &

(ERB_DATA_BIT.pin == INTERNAL_ARBITRATION) &

(!KA_PON_RESET # (ERB_PON_DEFAULT != EXTERNAL_ARBITRATION)) #

(KA_PON_RESET & (ERB_PON_DEFAULT == INTERNAL_ARBITRATION)) ) then

INTERNAL_ARBITRATION

else

EXTERNAL_ARBITRATION;

"******************************************************************************

state_diagram IP~

state IP_AT_0xFFF00000:

Freescale Semiconductor, Inc.

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Go to: www.freescale.com

MPC821 датащи(PDF) 113 Page - NXP Semiconductors