PowerQUICC II Hardware Configuration Word

Example 2-1. PowerSpan Interrupt Map Registers Initialization Code

&RQILJXUH3VSDQ,QWHUUXSWV￿￿YRLG￿

^

5HJ:ULWH￿￿￿￿7B,(5￿￿￿￿￿￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿1R￿LQWHUUXSW￿VRXUFH￿HQDEOHG 5HJ:ULWH￿￿￿￿7B,(5￿￿￿￿￿￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿1R￿LQWHUUXSW￿VRXUFH￿HQDEOHG

￿￿￿0DS￿,QWHUUXSW￿VRXUFHV￿WR￿,QWHUUXSW￿SLQV￿￿,17￿￿,17￿￿IRU￿,￿2￿XVDJH￿￿￿￿￿

5HJ:ULWH￿￿￿￿7B,'5￿￿￿￿￿￿￿￿[￿)￿￿￿￿￿￿￿￿￿￿￿￿,QWHUUXSW￿GLU￿￿￿,17￿￿RQO\￿DV￿LQSXW 5HJ:ULWH￿￿￿￿7B,05B0%2;￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿0%2;￿￿￿￿WR￿￿,17$￿￿0%2;￿￿￿￿WR￿￿,17￿ 5HJ:ULWH￿￿￿￿7B,05B'%￿￿￿￿￿[(&$￿￿￿￿￿￿￿￿￿￿￿'%￿￿WR￿￿,17$￿￿'%￿￿￿￿WR￿￿,17￿￿￿

5HJ:ULWH￿￿￿￿7B,05B'0$￿￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿'0$;￿￿￿￿WR￿￿,17$￿￿'0$￿￿￿￿WR￿￿,17￿

5HJ:ULWH￿￿￿￿7B,05B+:￿￿￿￿￿[￿￿(&$￿￿￿￿￿￿￿￿￿1R￿PDS￿IURP￿RQH￿LQW￿SLQ￿WR￿DQ￿

RWKHU 5HJ:ULWH￿￿￿￿7B,05B3￿￿￿￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿3&,￿￿￿HUURUV￿RQ￿3&,￿￿￿￿,17$ 5HJ:ULWH￿￿￿￿7B,05B3%￿￿￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿3%￿HUURUV￿RQ￿￿,17￿ 5HJ:ULWH￿￿￿￿7B,05￿B3%￿￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿3%￿HUURUV￿RQ￿￿,17￿

5HJ:ULWH￿￿￿￿7B,05B0,6&￿￿￿[￿￿￿￿￿￿￿￿￿￿￿￿￿￿,￿2￿KRVW￿WR￿￿,17$￿￿,￿2￿,23￿WR￿￿ ,17￿

5HJ:ULWH￿￿￿￿7B,(5￿￿￿￿￿￿￿￿[￿￿￿)￿￿￿￿￿￿￿￿￿￿,17￿￿￿￿+:￿LQWHUUXSWV￿HQDEOHG

`

PowerQUICC II Hardware Configuration Word

When the PowerQUICC II hardware reset signal is de-asserted, the PowerQUICC II generates 64-bit reads into its boot memory (the FLASH) with addresses starting at 0 and incremented by 8. The first eight bytes set its Hard Reset Configuration.

For the 4538, the PowerQUICC II Hard Reset Configuration is (must be):

EARB = 0: Internal bus arbitration

EXMC = 0: The internal memory controller is used

CDIS = 0:

The core is active

EBM = 1:60x-compatible bus mode

BPS = 01:

8-bit boot port size

–CIP = 0:Initial vector table base address is 0xFFF0 0000

ISPS = 0:Responds as 64-bit slave to 64-bit masters

L2CPC = 10: L2 cache pins configured as BADDR

DPPC = 00: Data parity pins used for interrupt signals IRQ17

ISB = 110: Internal Memory Mapped Register base address is 0xFF00 0000

BMS = 0:Boot memory space is 0xFE00 0000

BBD = 0:Bus Busy pins are enabled

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