Section 26 Serial Sound Interface (SSI) Module
Rev.1.00 Dec. 13, 2005 Page 994 of 1286
REJ09B0158-0100
Bit Bit
Name
Initial
Value R/W Description
26 OIRQ
0 R/W
*
Overflow Error Interrupt Status Flag
This status flag indicates that the data has been
supplied at a higher rate than the required rate.
This bit is set to 1 regardless of the setting of OIEN bit.
In order to clear it to 0, write 0 in it.
If OIRQ = 1 and OIEN = 1, then an interrupt will be
generated.
When TRMD = 0 (Receive Mode):
If OIRQ = 1, it indicates that the previous unread data
had not been read out before new unread data was
written in SSIRDR. This may cause the loss of data,
which can lead to destruction of multi-channel data.
When TRMD = 1 (Transmit Mode):
If OIRQ = 1, it indicates that SSITDR had data written in
before the data in SSITDR was transferred to the shift
register. This may cause the loss of data, which can
lead to destruction of multi-channel data.
Note: When overflow error occurs, the data in the data
buffer will be overwritten by the next data sent
from the SSI interface.
25
IIRQ
1
R
Idle Mode Interrupt Status Flag
This status flag indicates whether the SSI module is in
the idle status. This bit is set to 1 regardless of the
setting of IIEN bit, so that polling will be possible.
The interrupt can be masked by clearing IIEN bit to 0,
but writing 0 in this bit will not clear the interrupt.
If IIRQ = 1 and IIEN = 1, then an interrupt will be
generated.
0: The SSI module is not in the idle status.
1: The SSI module is in the idle status.
Summary of Contents for SH7780 Series
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Page 82: ...Section 1 Overview Rev 1 00 Dec 13 2005 Page 32 of 1286 REJ09B0158 0100 ...
Page 122: ...Section 3 Instruction Set Rev 1 00 Dec 13 2005 Page 72 of 1286 REJ09B0158 0100 ...
Page 146: ...Section 4 Pipelining Rev 1 00 Dec 13 2005 Page 96 of 1286 REJ09B0158 0100 ...
Page 196: ...Section 6 Floating Point Unit FPU Rev 1 00 Dec 13 2005 Page 146 of 1286 REJ09B0158 0100 ...
Page 292: ...Section 9 L Memory Rev 1 00 Dec 13 2005 Page 242 of 1286 REJ09B0158 0100 ...
Page 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
Page 674: ...Section 15 Clock Pulse Generator CPG Rev 1 00 Dec 13 2005 Page 624 of 1286 REJ09B0158 0100 ...
Page 692: ...Section 16 Watchdog Timer and Reset Rev 1 00 Dec 13 2005 Page 642 of 1286 REJ09B0158 0100 ...
Page 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
Page 1032: ...Section 25 Audio Codec Interface HAC Rev 1 00 Dec 13 2005 Page 982 of 1286 REJ09B0158 0100 ...
Page 1150: ...Section 28 General Purpose I O GPIO Rev 1 00 Dec 13 2005 Page 1100 of 1286 REJ09B0158 0100 ...
Page 1184: ...Section 29 User Break Controller UBC Rev 1 00 Dec 13 2005 Page 1134 of 1286 REJ09B0158 0100 ...
Page 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
Page 1328: ...Appendix Rev 1 00 Dec 13 2005 Page 1278 of 1286 REJ09B0158 0100 ...
Page 1336: ...Rev 1 00 Dec 13 2005 Page 1286 of 1286 REJ09B0158 0100 ...
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