26. Serial Sound Interface (SSI) Module
Rev.1.00 Jan. 10, 2008 Page 1305 of 1658
REJ09B0261-0100
Bit Bit
Name
Initial
Value R/W Description
9
PDTA
0
R/W
Parallel Data Alignment
This bit is ignored if CPEN = 1.
If the data word length = 32, 16 or 8 then this bit has no
meaning.
This bit is applied to SSIRDR in receive mode and to
SSITDR in transmit mode.
0: Parallel data (SSITDR or SSIRDR) is left aligned
1: Parallel data (SSITDR or SSIRDR) is right aligned
•
DWL = 000 (data word length: 8 bits), PDTA ignored
All data bits in SSIRDR or SSITDR are used on the
audio serial bus. Four data words are
transmitted/received in each 32-bit access. The first
data word is derived from bits 7 to 0, the second
from bits 15 to 8, the third from bits 23 to 16 and the
last data word is stored in bits 31 to 24.
•
DWL = 001 (data word length: 16 bits), PDTA
ignored
All data bits in SSIRDR or SSITDR are used on the
audio serial bus. Two data words are
transmitted/received in each 32-bit access. The first
data word is derived from bits 15 to 0 and the
second data word is stored in bits 31 to 16.
•
DWL = 010, 011, 100, 101 (data word length: 18,
20, 22 and 24 bits), PDTA = 0 (left aligned)
•
The data bits which are used in SSIRDR or SSITDR
are the following:
Bits 31 to (32 – number of bits having data word
length specified by DWL).
If DWL = 011 then data word length is 20 bits and
bits 31 to 12 are used of either SSIRDR or SSITDR.
All other bits are ignored or reserved.
•
DWL = 010, 011, 100, 101 (data word length: 18,
20, 22 and 24 bits), PDTA = 1 (right aligned)
The data bits which are used in SSIRDR or SSITDR
are the following:
Bits (number of bits having data word length
specified by DWL - 1) to 0.
If DWL = 011 then data word length is 20 bits and
bits 19 to 0 are used of either SSIRDR or SSITDR.
All other bits are ignored or reserved.
•
DWL = 110 (data word length: 32 bits), PDTA
ignored
All data bits in SSIRDR or SSITDR are used on the
audio serial bus.
Содержание SH7781
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Страница 74: ...2 Programming Model Rev 1 00 Jan 10 2008 Page 44 of 1658 REJ09B0261 0100 ...
Страница 272: ...8 Caches Rev 1 00 Jan 10 2008 Page 242 of 1658 REJ09B0261 0100 ...
Страница 376: ...10 Interrupt Controller INTC Rev 1 00 Jan 10 2008 Page 346 of 1658 REJ09B0261 0100 ...
Страница 694: ...13 PCI Controller PCIC Rev 1 00 Jan 10 2008 Page 664 of 1658 REJ09B0261 0100 ...
Страница 762: ...14 Direct Memory Access Controller DMAC Rev 1 00 Jan 10 2008 Page 732 of 1658 REJ09B0261 0100 ...
Страница 788: ...15 Clock Pulse Generator CPG Rev 1 00 Jan 10 2008 Page 758 of 1658 REJ09B0261 0100 ...
Страница 828: ...17 Power Down Mode Rev 1 00 Jan 10 2008 Page 798 of 1658 REJ09B0261 0100 ...
Страница 846: ...18 Timer Unit TMU Rev 1 00 Jan 10 2008 Page 816 of 1658 REJ09B0261 0100 ...
Страница 1292: ...24 Multimedia Card Interface MMCIF Rev 1 00 Jan 10 2008 Page 1262 of 1658 REJ09B0261 0100 ...
Страница 1326: ...25 Audio Codec Interface HAC Rev 1 00 Jan 10 2008 Page 1296 of 1658 REJ09B0261 0100 ...
Страница 1482: ...28 General Purpose I O Ports GPIO Rev 1 00 Jan 10 2008 Page 1452 of 1658 REJ09B0261 0100 ...
Страница 1538: ...30 User Debugging Interface H UDI Rev 1 00 Jan 10 2008 Page 1508 of 1658 REJ09B0261 0100 ...
Страница 1688: ...Appendix Rev 1 00 Jan 10 2008 Page 1658 of 1658 REJ09B0261 0100 ...
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