Rcs Receiver Data Word Truncation (Rdwt)-Bit 10; Figure 6-8 Receiver Relative Timing (Rrel) Programming; Figure 6-9 Receiver Data Word Truncation (Rdwt) Programming - Motorola DSP56012 User Manual

Serial Audio Interface
Serial Audio Interface Programming Model
RREL = 0
WSR
MSB
SDI
RREL = 1
WSR
LSB MSB
SDI

Figure 6-8 Receiver Relative Timing (RREL) Programming

6.3.2.10 RCS Receiver Data Word Truncation (RDWT)—Bit 10
The read/write Receiver Data Word Truncation (RDWT) control bit selects which
24-bit portion of a received 32-bit word will be transferred from the shift register to
the data register. When RDWT is cleared, the first 24 bits received are transferred to
the data register. When RDWT is set, the last 24 bits received are transferred to the
data register. The RDWT bit is ignored if RWL[1:0] are set for a word length other
than 32 bits (see Figure 6-9 on page 6-14).The RDWT bit is cleared during hardware
reset and software reset.
1 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
SCKR
WSR
RDWT = 0
SDI
RDWT = 1
SDI

Figure 6-9 Receiver Data Word Truncation (RDWT) Programming

6-14
Left
LSB
Left
LSB
Left
DSP56012 User's Manual
Right
MSB
Right
MSB
1 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Right
LSB MSB
LSB MSB
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AA0435k
MOTOROLA