r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1505

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

1. Philips Format
Figures 34.2 and 34.3 show the supported Philips protocol both with padding and without.
Padding occurs when the data word length is smaller than the system word length.
Figure 34.4 shows the format used by Sony. Figure 34.5 shows the format used by Matsushita.
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.
SSI_SDATA
SSI_SCK
SSI_WS
SSI_SDATA
SSI_SCK
SSI_WS
SCKP = 0, SWSP = 0, DEL = 0, CHNL = 00, SPDP = 0, SDTA = 0
System word length > data word length
SCKP = 0, SWSP = 0, DEL = 0, CHNL = 00
System word length = data word length
prev. sample MSB
Figure 34.2 Philips Format (with no Padding)
MSB
Figure 34.3 Philips Format (with Padding)
Data word 1
System word 1
System word 1 =
data word 1
LSB
LSB
+ 1
Padding
LSB MSB
MSB
Rev. 1.00 Oct. 01, 2007 Page 1439 of 1956
System word 2 =
data word 2
Data word 2
Section 34 Serial Sound Interface (SSI)
System word 2
LSB
+ 1
LSB
LSB next sample
Padding
REJ09B0256-0100
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