r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1347

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

2. Sony Format
3. Matsushita Format
(6)
There is an extend format of the definition of the specification by Philips and allows more than 2
channels to be transferred within two system words.
The SSI module supports the transfer of 4, 6 and 8 channels by the use of the CHNL, SWL and
DWL bits. It is important that the system word length (SWL) is greater than or equal to the
number of channels (CHNL) times the data word length (DWL).
Table 26.4 shows the number of padding bits for each of the valid configurations. If a setup is not
valid it does not have a number in the following table and has instead a dash.
Figure 26.5 Matsushita Format (with Padding Bits First, Followed by Serial Data)
Multi-Channel Formats
SSI_SCK
SSI_WS
SSI_SDATA
SSI_SCK
SSI_WS
SSI_SDATA
Figure 26.4 Sony Format (with Serial Data First, Followed by Padding Bits)
SCKP = 0, SWSP = 0, DEL = 1, CHNL = 00, SPDP = 0, SDTA = 1
System word length > data word length
SCKP = 0, SWSP = 0, DEL = 1, CHNL = 00, SPDP = 0, SDTA = 0
System word length > data word length
MSB
prev
Data word 1
System word 1
Padding
LSB
System word 1
MSB
Padding
Data word 1
MSB
LSB
Data word 2
Rev.1.00 Jan. 10, 2008 Page 1317 of 1658
System word 2
Padding
26. Serial Sound Interface (SSI) Module
LSB
System word 2
MSB
Padding
Data word 2
REJ09B0261-0100
LSB
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