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Section 18 Serial Sound Interface
R01UH0134EJ0400 Rev. 4.00 Page 921 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
Figure 18.5 shows MSB-first left-aligned format, and figure 18.6 shows MSB-first right-
aligned format. Padding is assumed in both cases, but may not be present in a final
implementation if the system word length equals the data word length.
MSB-First Left-Aligned Format
MSB LSB MSB LSB Next
SSISCK
SSIWS
SSIDATA
SCKP = 0, SWSP = 0, DEL = 1, CHNL = 00, SPDP = 0, SDTA = 0
System word length > data word length
System word 1 System word 2
Data word 1 Data word 2Padding
Padding
Figure 18.5 MSB-First Left-Aligned Format
(Transmitted and Received in the order of Serial Data and Padding Bits)
MSB-First Right-Aligned Format
MSB LSB
System word 1 System word 2
Data word 1 Data word 2PaddingPadding
MSB LSBPrev.
SSISCK
SSIWS
SSIDATA
SCKP = 0, SWSP = 0, DEL = 1, CHNL = 00, SPDP = 0, SDTA = 1
System word length > data word length
Figure 18.6 MSB-First Right-Aligned Format
(Transmitted and Received in the Order of Padding Bits and Serial Data)