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Section 19 Serial I/O with FIFO
R01UH0134EJ0400 Rev. 4.00 Page 967 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
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L-channel data R-channel data
(a) 16-bit stereo data
Data
Data
Data
(b) 16-bit monaural data
(c) 8-bit monaural data
(d) 16-bit stereo data (left and right same audio output) data
Figure 19.5 Transmit/Receive Data Bit Alignment
Note: In the figure, only the shaded areas are transmitted or received as valid data. Data in
unshaded areas is not transmitted or received.
Monaural or stereo can be specified for transmit data by the TDLE bit and TDRE bit in SITDAR.
Monaural or stereo can be specified for receive data by the RDLE bit and RDRE bit in SIRDAR.
To achieve left and right same audio output while stereo is specified for transmit data, specify the
TLREP bit in SITDAR. Tables 19.6 and 19.7 show the audio mode specifications for transmit data
and that for receive data, respectively.
Table 19.6 Audio Mode Specification for Transmit Data
Mode
Bit
TDLE TDRE TLREP
Monaural 1 0 x
Stereo 1 1 0
Left and right same audio output 1 1 1
Note: x: Don't care