Motorola MSC8101 ADS User Manual download pdf (Page 115)

C-114 MSC8101ADS RevB User’s Manual MOTOROLA

(EE0_node,EE1_node,EE2_node,EE3_node,EE4_node,EE5_node,EED_node

,RSV3_7);

ELSIF (MPC_READ_BCSR_4) THEN

Data_Buff[].oe = VCC;

Data_Buff[0..SIZE4].in = ((!F_CFG_EN~),DLLDIS,Bcsr4[2..SIZE4].q);

ELSIF (MPC_READ_BCSR_5) THEN

Data_Buff[].oe = VCC;

Data_Buff[0..SIZE5].in = Bcsr5[0..SIZE5].q;

ELSIF (MPC_READ_BCSR_6) THEN

Data_Buff[].oe = VCC;

Data_Buff[0..SIZE6].in = Bcsr6[0..SIZE6].q;

-- Assign Default Configuration Word onto Data Bus:

ELSIF (FIRST_CFG_BYTE_READ) THEN

Data_Buff[].oe = VCC;

Data_Buff[0..7] = CFG_BYTE0[0..7];

ELSIF (SCND_CFG_BYTE_READ) THEN

Data_Buff[].oe = VCC;

Data_Buff[0..7] = CFG_BYTE1[0..7];

ELSIF (THIRD_CFG_BYTE_READ) THEN

Data_Buff[].oe = VCC;

Data_Buff[0..7] = CFG_BYTE2[0..7];

ELSIF (FOURTH_CFG_BYTE_READ) THEN

Data_Buff[].oe = VCC;

Data_Buff[0..7] = CFG_BYTE3[0..7];

ELSE Data_Buff[].oe = GND; -- Do not assign Data Bus

END IF;

D[0..SIZE0]=Data_Buff[0..SIZE0]; -- Move Data to Bus

BCSR2_CS~ = !MPC_READ_BCSR_2; -- DSP reads external BCSR2 status

******************************************************************************

* Reset Logic:

* Debounce the Abort(NMI), Soft-Reset and HardReset buttons & assign outputs

******************************************************************************

SoftRstMachin.Clk= ResetEnsure.q[18];

SoftRstMachin.Reset= REGULAR_POWER_ON_RESET;

SoftRstMachin.PushBtn= RstSoft~;

SoftReset~ = !SoftRstMachin.Rst_True;

HardRstMachin.Clk= ResetEnsure.q[18];

HardRstMachin.Reset= REGULAR_POWER_ON_RESET;

HardRstMachin.PushBtn= RstHard~;

HardReset~ = !HardRstMachin.Rst_True;

AbortRstMachin.Clk= ResetEnsure.q[18];

AbortRstMachin.Reset= REGULAR_POWER_ON_RESET;

AbortRstMachin.PushBtn= RstNMI~;

IRQ0 = AbortRstMachin.Rst_True;

HRESET~ = OPNDRN(HardReset~); -- Assign Hard Reset output

SRESET~ = OPNDRN(SoftReset~);-- Assign Soft Reset output

NMI~ = OPNDRN(!IRQ0); -- drive low to IRQ0 input of DSP

******************************************************************************

Frees

cale Semiconductor,

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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