SH7263 Datasheet, PDF (920/1862 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 18 Serial Sound Interface (SSI)
• Philips Format
Figures 18.3 and 18.4 demonstrate the supported Philips format both with and without padding.
Padding occurs when the data word length is smaller than the system word length.
SCKP = 0, SWSP = 0, DEL = 0, CHNL = 00
System word length = data word length
SSISCK
SSIWS
SSIDATA
prev. sample MSB
LSB
+1
LSB MSB
LSB
+1
LSB
next sample
System word 1 =
data word 1
System word 2 =
data word 2
Figure 18.3 Philips Format (without Padding)
SCKP = 0, SWSP = 0, DEL = 0, CHNL = 00, SPDP = 0, SDTA = 0
System word length > data word length
SSISCK
SSIWS
SSIDATA
MSB
LSB
MSB
LSB
Next
Data word 1
Padding
Data word 2
Padding
System word 1
System word 2
Figure 18.4 Philips Format (with Padding)
Rev. 2.00 Mar. 14, 2008 Page 886 of 1824
REJ09B0290-0200