Motorola DSP56009 User Manual page 57

Table 2-9 Serial Audio Interface (SAI) Receiver signals (Continued)
Signal Signal
Name Type
WSR Input or
Output
MOTOROLA
State
during
Reset
Tri-stated Word Select Receive (WSR)—WSR is an
output if the receiver section is configured as a
master, and a Schmitt-trigger input if
configured as a slave. WSR is used to
synchronize the data word and to select the
left/right portion of the data sample.
Note: WSR is high impedance if all receivers are
DSP56009 User's Manual
Signal Descriptions
Serial Audio Interface (SAI)
Signal Description
disabled (individual reset), during
hardware reset, during software reset, or
while the DSP is in the Stop state. While in
the high impedance state, the internal input
buffer is disconnected from the signal and
no external pull-up is necessary.
2-19