PDSP1601A 데이터 시트보기 (PDF) - Zarlink Semiconductor Inc

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PDSP1601A

ALU and Barrel Shifter

Zarlink Semiconductor Inc 

PDSP1601/PDSP1601A

Multiplexers

There are four user selectable on-chip multiplexers (A-

MUX, B-MUX, S-MUX and C-MUX).

These four multiplexers support instructions as tabulated

in Table 5.

The MUX instructions are latched such that the instruction

will not start executing until the rising edge of CLK latches the

instruction onto the device.

A-MUX

MARAX

MAAPR

MABPR

MARSX

B-MUX

S-MUX

C-MUX

MSA1 MSA0

0

0

0

1

1

0

1

1

MSB

0

1

MSS

0

1

MSC

0

1

Output

ALU REGISTER FILE OUPUT

A-PORT INPUT

B-PORT INPUT

SHIFTER REGISTER FILE OUTPUT

Output

B-PORT INPUT

SHIFTER REGISTER FILE OUTPUT

Output

B-PORT INPUT

SHIFTER REGISTER FILE OUTPUT

Output

ALU REGISTER FILE OUTPUT

SHIFTER REGISTER FILE OUTPUT

Table 5

9

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