PDSP1601 MC
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.
MSA2
Output
MSA1
0
1
0
1
ALU REGISTER FILE OUPUT
A-PORT INPUT
B-PORT INPUT
MARAX
MAAPR
MABPR
MARSX
0
0
1
1
A-MUX
SHIFTER REGISTER FILE OUTPUT
Output
MSB
B-PORT INPUT
SHIFTER REGISTER FILE OUTPUT
0
1
B-MUX
S-MUX
C-MUX
Output
MSS
B-PORT INPUT
SHIFTER REGISTER FILE OUTPUT
0
1
Output
MSC
ALU REGISTER FILE OUTPUT
SHIFTER REGISTER FILE OUTPUT
0
1
Table 5
8
MITEL [ MITEL NETWORKS CORPORATION ]
